Finding the Fourth Proportional to 87,111.24, 130,666.38 and 31,707.24

Step by Step Solution

1. Step 1: Write the proportion equation
   87,111.24 : 130,666.38 = 31,707.24 : x
2. Step 2: Convert to fraction form
   87,111.24/130,666.38 = 31,707.24/x
3. Step 3: Cross multiply
   87,111.24x = 130,666.38 × 31,707.24
4. Step 4: Simplify right side
   87,111.24x = 4,143,070,270.59
5. Step 5: Solve for x
   x = 4,143,070,270.59/87,111.24
6. Step 6: Final answer
   x = 47,560.69