Finding the Fourth Proportional to 42,215,940,792.47, 63,334,629,642.88 and 19,542,640,952.09

Step by Step Solution

1. Step 1: Write the proportion equation
   42,215,940,792.47 : 63,334,629,642.88 = 19,542,640,952.09 : x
2. Step 2: Convert to fraction form
   42,215,940,792.47/63,334,629,642.88 = 19,542,640,952.09/x
3. Step 3: Cross multiply
   42,215,940,792.47x = 63,334,629,642.88 × 19,542,640,952.09
4. Step 4: Simplify right side
   42,215,940,792.47x = 1,237,725,926,944,565,624,832
5. Step 5: Solve for x
   x = 1,237,725,926,944,565,624,832/42,215,940,792.47
6. Step 6: Final answer
   x = 29,318,923,224.50