Finding the Fourth Proportional to 93,174.31, 139,499.01 and 83,726.47

Step by Step Solution

1. Step 1: Write the proportion equation
   93,174.31 : 139,499.01 = 83,726.47 : x
2. Step 2: Convert to fraction form
   93,174.31/139,499.01 = 83,726.47/x
3. Step 3: Cross multiply
   93,174.31x = 139,499.01 × 83,726.47
4. Step 4: Simplify right side
   93,174.31x = 11,679,759,675.79
5. Step 5: Solve for x
   x = 11,679,759,675.79/93,174.31
6. Step 6: Final answer
   x = 125,353.86