Finding the Fourth Proportional to 52,288.61, 72,158.22 and 28,415.23

Step by Step Solution

1. Step 1: Write the proportion equation
   52,288.61 : 72,158.22 = 28,415.23 : x
2. Step 2: Convert to fraction form
   52,288.61/72,158.22 = 28,415.23/x
3. Step 3: Cross multiply
   52,288.61x = 72,158.22 × 28,415.23
4. Step 4: Simplify right side
   52,288.61x = 2,050,392,417.69
5. Step 5: Solve for x
   x = 2,050,392,417.69/52,288.61
6. Step 6: Final answer
   x = 39,212.98