Finding the Fourth Proportional to 31,472.01, 43,337.70 and 30,773.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,472.01 : 43,337.70 = 30,773.52 : x
2. Step 2: Convert to fraction form
   31,472.01/43,337.70 = 30,773.52/x
3. Step 3: Cross multiply
   31,472.01x = 43,337.70 × 30,773.52
4. Step 4: Simplify right side
   31,472.01x = 1,333,653,577.70
5. Step 5: Solve for x
   x = 1,333,653,577.70/31,472.01
6. Step 6: Final answer
   x = 42,375.86