Finding the Fourth Proportional to 52,399.41, 72,308.91 and 28,526.05

Step by Step Solution

1. Step 1: Write the proportion equation
   52,399.41 : 72,308.91 = 28,526.05 : x
2. Step 2: Convert to fraction form
   52,399.41/72,308.91 = 28,526.05/x
3. Step 3: Cross multiply
   52,399.41x = 72,308.91 × 28,526.05
4. Step 4: Simplify right side
   52,399.41x = 2,062,687,582.11
5. Step 5: Solve for x
   x = 2,062,687,582.11/52,399.41
6. Step 6: Final answer
   x = 39,364.71