Finding the Fourth Proportional to 137,362.50, 189,549.86 and 83,641.55

Step by Step Solution

1. Step 1: Write the proportion equation
   137,362.50 : 189,549.86 = 83,641.55 : x
2. Step 2: Convert to fraction form
   137,362.50/189,549.86 = 83,641.55/x
3. Step 3: Cross multiply
   137,362.50x = 189,549.86 × 83,641.55
4. Step 4: Simplify right side
   137,362.50x = 15,854,242,726.73
5. Step 5: Solve for x
   x = 15,854,242,726.73/137,362.50
6. Step 6: Final answer
   x = 115,419.00