Finding the Fourth Proportional to 82,746,374,978.52, 124,119,564,109.92 and 19,861,673,505.53

Step by Step Solution

1. Step 1: Write the proportion equation
   82,746,374,978.52 : 124,119,564,109.92 = 19,861,673,505.53 : x
2. Step 2: Convert to fraction form
   82,746,374,978.52/124,119,564,109.92 = 19,861,673,505.53/x
3. Step 3: Cross multiply
   82,746,374,978.52x = 124,119,564,109.92 × 19,861,673,505.53
4. Step 4: Simplify right side
   82,746,374,978.52x = 2,465,222,257,999,309,963,264
5. Step 5: Solve for x
   x = 2,465,222,257,999,309,963,264/82,746,374,978.52
6. Step 6: Final answer
   x = 29,792,510,652.45