Finding the Fourth Proportional to 52,480.05, 72,423.22 and 28,606.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,480.05 : 72,423.22 = 28,606.72 : x
2. Step 2: Convert to fraction form
   52,480.05/72,423.22 = 28,606.72/x
3. Step 3: Cross multiply
   52,480.05x = 72,423.22 × 28,606.72
4. Step 4: Simplify right side
   52,480.05x = 2,071,790,776.04
5. Step 5: Solve for x
   x = 2,071,790,776.04/52,480.05
6. Step 6: Final answer
   x = 39,477.68