Finding the Fourth Proportional to 109,546.32, 151,036.96 and 91,423.12

Step by Step Solution

1. Step 1: Write the proportion equation
   109,546.32 : 151,036.96 = 91,423.12 : x
2. Step 2: Convert to fraction form
   109,546.32/151,036.96 = 91,423.12/x
3. Step 3: Cross multiply
   109,546.32x = 151,036.96 × 91,423.12
4. Step 4: Simplify right side
   109,546.32x = 13,808,270,118.52
5. Step 5: Solve for x
   x = 13,808,270,118.52/109,546.32
6. Step 6: Final answer
   x = 126,049.60