Finding the Fourth Proportional to 52,499.28, 72,448.83 and 28,625.90

Step by Step Solution

1. Step 1: Write the proportion equation
   52,499.28 : 72,448.83 = 28,625.90 : x
2. Step 2: Convert to fraction form
   52,499.28/72,448.83 = 28,625.90/x
3. Step 3: Cross multiply
   52,499.28x = 72,448.83 × 28,625.90
4. Step 4: Simplify right side
   52,499.28x = 2,073,912,600.45
5. Step 5: Solve for x
   x = 2,073,912,600.45/52,499.28
6. Step 6: Final answer
   x = 39,503.64