Finding the Fourth Proportional to 58,747.50, 81,071.72 and 31,890.02

Step by Step Solution

1. Step 1: Write the proportion equation
   58,747.50 : 81,071.72 = 31,890.02 : x
2. Step 2: Convert to fraction form
   58,747.50/81,071.72 = 31,890.02/x
3. Step 3: Cross multiply
   58,747.50x = 81,071.72 × 31,890.02
4. Step 4: Simplify right side
   58,747.50x = 2,585,378,772.23
5. Step 5: Solve for x
   x = 2,585,378,772.23/58,747.50
6. Step 6: Final answer
   x = 44,008.32