Finding the Fourth Proportional to 52,295.55, 72,167.61 and 28,422.15

Step by Step Solution

1. Step 1: Write the proportion equation
   52,295.55 : 72,167.61 = 28,422.15 : x
2. Step 2: Convert to fraction form
   52,295.55/72,167.61 = 28,422.15/x
3. Step 3: Cross multiply
   52,295.55x = 72,167.61 × 28,422.15
4. Step 4: Simplify right side
   52,295.55x = 2,051,158,636.56
5. Step 5: Solve for x
   x = 2,051,158,636.56/52,295.55
6. Step 6: Final answer
   x = 39,222.43