Finding the Fourth Proportional to 80,080.11, 120,192.93 and 42,672.15

Step by Step Solution

1. Step 1: Write the proportion equation
   80,080.11 : 120,192.93 = 42,672.15 : x
2. Step 2: Convert to fraction form
   80,080.11/120,192.93 = 42,672.15/x
3. Step 3: Cross multiply
   80,080.11x = 120,192.93 × 42,672.15
4. Step 4: Simplify right side
   80,080.11x = 5,128,890,737.90
5. Step 5: Solve for x
   x = 5,128,890,737.90/80,080.11
6. Step 6: Final answer
   x = 64,047.00