Finding the Fourth Proportional to 52,248.80, 72,109.50 and 31,028.07

Step by Step Solution

1. Step 1: Write the proportion equation
   52,248.80 : 72,109.50 = 31,028.07 : x
2. Step 2: Convert to fraction form
   52,248.80/72,109.50 = 31,028.07/x
3. Step 3: Cross multiply
   52,248.80x = 72,109.50 × 31,028.07
4. Step 4: Simplify right side
   52,248.80x = 2,237,418,613.67
5. Step 5: Solve for x
   x = 2,237,418,613.67/52,248.80
6. Step 6: Final answer
   x = 42,822.39