Finding the Fourth Proportional to 114,691.50, 158,276.10 and 64,389.42

Step by Step Solution

1. Step 1: Write the proportion equation
   114,691.50 : 158,276.10 = 64,389.42 : x
2. Step 2: Convert to fraction form
   114,691.50/158,276.10 = 64,389.42/x
3. Step 3: Cross multiply
   114,691.50x = 158,276.10 × 64,389.42
4. Step 4: Simplify right side
   114,691.50x = 10,191,306,278.86
5. Step 5: Solve for x
   x = 10,191,306,278.86/114,691.50
6. Step 6: Final answer
   x = 88,858.43