Finding the Fourth Proportional to 52,264.29, 72,124.83 and 28,390.80

Step by Step Solution

1. Step 1: Write the proportion equation
   52,264.29 : 72,124.83 = 28,390.80 : x
2. Step 2: Convert to fraction form
   52,264.29/72,124.83 = 28,390.80/x
3. Step 3: Cross multiply
   52,264.29x = 72,124.83 × 28,390.80
4. Step 4: Simplify right side
   52,264.29x = 2,047,681,623.56
5. Step 5: Solve for x
   x = 2,047,681,623.56/52,264.29
6. Step 6: Final answer
   x = 39,179.36