Finding the Fourth Proportional to 52,477.61, 72,418.37 and 28,604.39

Step by Step Solution

1. Step 1: Write the proportion equation
   52,477.61 : 72,418.37 = 28,604.39 : x
2. Step 2: Convert to fraction form
   52,477.61/72,418.37 = 28,604.39/x
3. Step 3: Cross multiply
   52,477.61x = 72,418.37 × 28,604.39
4. Step 4: Simplify right side
   52,477.61x = 2,071,482,793.53
5. Step 5: Solve for x
   x = 2,071,482,793.53/52,477.61
6. Step 6: Final answer
   x = 39,473.65