Finding the Fourth Proportional to 52,399.63, 72,309.22 and 28,526.39

Step by Step Solution

1. Step 1: Write the proportion equation
   52,399.63 : 72,309.22 = 28,526.39 : x
2. Step 2: Convert to fraction form
   52,399.63/72,309.22 = 28,526.39/x
3. Step 3: Cross multiply
   52,399.63x = 72,309.22 × 28,526.39
4. Step 4: Simplify right side
   52,399.63x = 2,062,720,577.45
5. Step 5: Solve for x
   x = 2,062,720,577.45/52,399.63
6. Step 6: Final answer
   x = 39,365.18