Finding the Fourth Proportional to 52,478.82, 72,419.68 and 28,605.28

Step by Step Solution

1. Step 1: Write the proportion equation
   52,478.82 : 72,419.68 = 28,605.28 : x
2. Step 2: Convert to fraction form
   52,478.82/72,419.68 = 28,605.28/x
3. Step 3: Cross multiply
   52,478.82x = 72,419.68 × 28,605.28
4. Step 4: Simplify right side
   52,478.82x = 2,071,585,223.91
5. Step 5: Solve for x
   x = 2,071,585,223.91/52,478.82
6. Step 6: Final answer
   x = 39,474.69