Finding the Fourth Proportional to 72,312.71, 108,282.15 and 49,892.51

Step by Step Solution

1. Step 1: Write the proportion equation
   72,312.71 : 108,282.15 = 49,892.51 : x
2. Step 2: Convert to fraction form
   72,312.71/108,282.15 = 49,892.51/x
3. Step 3: Cross multiply
   72,312.71x = 108,282.15 × 49,892.51
4. Step 4: Simplify right side
   72,312.71x = 5,402,468,522.40
5. Step 5: Solve for x
   x = 5,402,468,522.40/72,312.71
6. Step 6: Final answer
   x = 74,709.81