Finding the Fourth Proportional to 87,063.93, 130,645.10 and 37,139.31

Step by Step Solution

1. Step 1: Write the proportion equation
   87,063.93 : 130,645.10 = 37,139.31 : x
2. Step 2: Convert to fraction form
   87,063.93/130,645.10 = 37,139.31/x
3. Step 3: Cross multiply
   87,063.93x = 130,645.10 × 37,139.31
4. Step 4: Simplify right side
   87,063.93x = 4,852,068,961.73
5. Step 5: Solve for x
   x = 4,852,068,961.73/87,063.93
6. Step 6: Final answer
   x = 55,729.96