Finding the Fourth Proportional to 148,947.28, 205,499.99 and 92,391.46

Step by Step Solution

1. Step 1: Write the proportion equation
   148,947.28 : 205,499.99 = 92,391.46 : x
2. Step 2: Convert to fraction form
   148,947.28/205,499.99 = 92,391.46/x
3. Step 3: Cross multiply
   148,947.28x = 205,499.99 × 92,391.46
4. Step 4: Simplify right side
   148,947.28x = 18,986,443,823.31
5. Step 5: Solve for x
   x = 18,986,443,823.31/148,947.28
6. Step 6: Final answer
   x = 127,470.90