Finding the Fourth Proportional to 52,398.19, 72,298.29 and 31,173.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52,398.19 : 72,298.29 = 31,173.31 : x
2. Step 2: Convert to fraction form
   52,398.19/72,298.29 = 31,173.31/x
3. Step 3: Cross multiply
   52,398.19x = 72,298.29 × 31,173.31
4. Step 4: Simplify right side
   52,398.19x = 2,253,777,006.64
5. Step 5: Solve for x
   x = 2,253,777,006.64/52,398.19
6. Step 6: Final answer
   x = 43,012.50