Finding the Fourth Proportional to 109,079.27, 150,540.77 and 66,666.05

Step by Step Solution

1. Step 1: Write the proportion equation
   109,079.27 : 150,540.77 = 66,666.05 : x
2. Step 2: Convert to fraction form
   109,079.27/150,540.77 = 66,666.05/x
3. Step 3: Cross multiply
   109,079.27x = 150,540.77 × 66,666.05
4. Step 4: Simplify right side
   109,079.27x = 10,035,958,499.86
5. Step 5: Solve for x
   x = 10,035,958,499.86/109,079.27
6. Step 6: Final answer
   x = 92,006.10