Finding the Fourth Proportional to 80,182.56, 120,238.29 and 42,735.66

Step by Step Solution

1. Step 1: Write the proportion equation
   80,182.56 : 120,238.29 = 42,735.66 : x
2. Step 2: Convert to fraction form
   80,182.56/120,238.29 = 42,735.66/x
3. Step 3: Cross multiply
   80,182.56x = 120,238.29 × 42,735.66
4. Step 4: Simplify right side
   80,182.56x = 5,138,462,680.42
5. Step 5: Solve for x
   x = 5,138,462,680.42/80,182.56
6. Step 6: Final answer
   x = 64,084.54