Finding the Fourth Proportional to 52,387.61, 72,296.43 and 28,515.83

Step by Step Solution

1. Step 1: Write the proportion equation
   52,387.61 : 72,296.43 = 28,515.83 : x
2. Step 2: Convert to fraction form
   52,387.61/72,296.43 = 28,515.83/x
3. Step 3: Cross multiply
   52,387.61x = 72,296.43 × 28,515.83
4. Step 4: Simplify right side
   52,387.61x = 2,061,592,346.00
5. Step 5: Solve for x
   x = 2,061,592,346.00/52,387.61
6. Step 6: Final answer
   x = 39,352.67