Finding the Fourth Proportional to 80,114.16, 120,242.52 and 42,705.12

Step by Step Solution

1. Step 1: Write the proportion equation
   80,114.16 : 120,242.52 = 42,705.12 : x
2. Step 2: Convert to fraction form
   80,114.16/120,242.52 = 42,705.12/x
3. Step 3: Cross multiply
   80,114.16x = 120,242.52 × 42,705.12
4. Step 4: Simplify right side
   80,114.16x = 5,134,971,245.70
5. Step 5: Solve for x
   x = 5,134,971,245.70/80,114.16
6. Step 6: Final answer
   x = 64,095.68