Finding the Fourth Proportional to 42,965,996.71, 64,448,363.95 and 10,617,898.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,965,996.71 : 64,448,363.95 = 10,617,898.47 : x
2. Step 2: Convert to fraction form
   42,965,996.71/64,448,363.95 = 10,617,898.47/x
3. Step 3: Cross multiply
   42,965,996.71x = 64,448,363.95 × 10,617,898.47
4. Step 4: Simplify right side
   42,965,996.71x = 684,306,184,978,708.25
5. Step 5: Solve for x
   x = 684,306,184,978,708.25/42,965,996.71
6. Step 6: Final answer
   x = 15,926,691.74