Finding the Fourth Proportional to 109,589.72, 151,225.20 and 67,142.48

Step by Step Solution

1. Step 1: Write the proportion equation
   109,589.72 : 151,225.20 = 67,142.48 : x
2. Step 2: Convert to fraction form
   109,589.72/151,225.20 = 67,142.48/x
3. Step 3: Cross multiply
   109,589.72x = 151,225.20 × 67,142.48
4. Step 4: Simplify right side
   109,589.72x = 10,153,634,966.50
5. Step 5: Solve for x
   x = 10,153,634,966.50/109,589.72
6. Step 6: Final answer
   x = 92,651.35