Finding the Fourth Proportional to 48,080.72, 72,158.28 and 31,436.24

Step by Step Solution

1. Step 1: Write the proportion equation
   48,080.72 : 72,158.28 = 31,436.24 : x
2. Step 2: Convert to fraction form
   48,080.72/72,158.28 = 31,436.24/x
3. Step 3: Cross multiply
   48,080.72x = 72,158.28 × 31,436.24
4. Step 4: Simplify right side
   48,080.72x = 2,268,385,008.07
5. Step 5: Solve for x
   x = 2,268,385,008.07/48,080.72
6. Step 6: Final answer
   x = 47,178.68