Finding the Fourth Proportional to 52,499.28, 72,447.96 and 28,626.12

Step by Step Solution

1. Step 1: Write the proportion equation
   52,499.28 : 72,447.96 = 28,626.12 : x
2. Step 2: Convert to fraction form
   52,499.28/72,447.96 = 28,626.12/x
3. Step 3: Cross multiply
   52,499.28x = 72,447.96 × 28,626.12
4. Step 4: Simplify right side
   52,499.28x = 2,073,903,996.72
5. Step 5: Solve for x
   x = 2,073,903,996.72/52,499.28
6. Step 6: Final answer
   x = 39,503.48