Finding the Fourth Proportional to 99,931.55, 137,907.24 and 59,637.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,931.55 : 137,907.24 = 59,637.50 : x
2. Step 2: Convert to fraction form
   99,931.55/137,907.24 = 59,637.50/x
3. Step 3: Cross multiply
   99,931.55x = 137,907.24 × 59,637.50
4. Step 4: Simplify right side
   99,931.55x = 8,224,442,335.96
5. Step 5: Solve for x
   x = 8,224,442,335.96/99,931.55
6. Step 6: Final answer
   x = 82,300.76