Finding the Fourth Proportional to 31,143,675.43, 42,979,501.39 and 17,912,831.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,143,675.43 : 42,979,501.39 = 17,912,831.18 : x
2. Step 2: Convert to fraction form
   31,143,675.43/42,979,501.39 = 17,912,831.18/x
3. Step 3: Cross multiply
   31,143,675.43x = 42,979,501.39 × 17,912,831.18
4. Step 4: Simplify right side
   31,143,675.43x = 769,884,552,339,965.88
5. Step 5: Solve for x
   x = 769,884,552,339,965.88/31,143,675.43
6. Step 6: Final answer
   x = 24,720,414.07