Finding the Fourth Proportional to 52,479.08, 72,419 and 28,605.24

Step by Step Solution

1. Step 1: Write the proportion equation
   52,479.08 : 72,419 = 28,605.24 : x
2. Step 2: Convert to fraction form
   52,479.08/72,419 = 28,605.24/x
3. Step 3: Cross multiply
   52,479.08x = 72,419 × 28,605.24
4. Step 4: Simplify right side
   52,479.08x = 2,071,562,875.56
5. Step 5: Solve for x
   x = 2,071,562,875.56/52,479.08
6. Step 6: Final answer
   x = 39,474.07