Finding the Fourth Proportional to 52,314.32, 72,196.72 and 28,440.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,314.32 : 72,196.72 = 28,440.52 : x
2. Step 2: Convert to fraction form
   52,314.32/72,196.72 = 28,440.52/x
3. Step 3: Cross multiply
   52,314.32x = 72,196.72 × 28,440.52
4. Step 4: Simplify right side
   52,314.32x = 2,053,312,007.50
5. Step 5: Solve for x
   x = 2,053,312,007.50/52,314.32
6. Step 6: Final answer
   x = 39,249.52