Finding the Fourth Proportional to 52,380.72, 72,267.03 and 31,157.10

Step by Step Solution

1. Step 1: Write the proportion equation
   52,380.72 : 72,267.03 = 31,157.10 : x
2. Step 2: Convert to fraction form
   52,380.72/72,267.03 = 31,157.10/x
3. Step 3: Cross multiply
   52,380.72x = 72,267.03 × 31,157.10
4. Step 4: Simplify right side
   52,380.72x = 2,251,631,080.41
5. Step 5: Solve for x
   x = 2,251,631,080.41/52,380.72
6. Step 6: Final answer
   x = 42,985.87