Finding the Fourth Proportional to 8,387.32, 12,573.78 and 4,686.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,387.32 : 12,573.78 = 4,686.52 : x
2. Step 2: Convert to fraction form
   8,387.32/12,573.78 = 4,686.52/x
3. Step 3: Cross multiply
   8,387.32x = 12,573.78 × 4,686.52
4. Step 4: Simplify right side
   8,387.32x = 58,927,271.45
5. Step 5: Solve for x
   x = 58,927,271.45/8,387.32
6. Step 6: Final answer
   x = 7,025.76