Finding the Fourth Proportional to 168,061.61, 231,925.04 and 91,580.73

Step by Step Solution

1. Step 1: Write the proportion equation
   168,061.61 : 231,925.04 = 91,580.73 : x
2. Step 2: Convert to fraction form
   168,061.61/231,925.04 = 91,580.73/x
3. Step 3: Cross multiply
   168,061.61x = 231,925.04 × 91,580.73
4. Step 4: Simplify right side
   168,061.61x = 21,239,864,468.48
5. Step 5: Solve for x
   x = 21,239,864,468.48/168,061.61
6. Step 6: Final answer
   x = 126,381.42