Finding the Fourth Proportional to 102,061.06, 140,912.99 and 91,272.46

Step by Step Solution

1. Step 1: Write the proportion equation
   102,061.06 : 140,912.99 = 91,272.46 : x
2. Step 2: Convert to fraction form
   102,061.06/140,912.99 = 91,272.46/x
3. Step 3: Cross multiply
   102,061.06x = 140,912.99 × 91,272.46
4. Step 4: Simplify right side
   102,061.06x = 12,861,474,082.33
5. Step 5: Solve for x
   x = 12,861,474,082.33/102,061.06
6. Step 6: Final answer
   x = 126,017.45