Finding the Fourth Proportional to 151,471.60, 209,046.36 and 91,061.92

Step by Step Solution

1. Step 1: Write the proportion equation
   151,471.60 : 209,046.36 = 91,061.92 : x
2. Step 2: Convert to fraction form
   151,471.60/209,046.36 = 91,061.92/x
3. Step 3: Cross multiply
   151,471.60x = 209,046.36 × 91,061.92
4. Step 4: Simplify right side
   151,471.60x = 19,036,162,910.61
5. Step 5: Solve for x
   x = 19,036,162,910.61/151,471.60
6. Step 6: Final answer
   x = 125,674.80