Finding the Fourth Proportional to 10,485.60, 15,707.52 and 6,326.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,485.60 : 15,707.52 = 6,326.72 : x
2. Step 2: Convert to fraction form
   10,485.60/15,707.52 = 6,326.72/x
3. Step 3: Cross multiply
   10,485.60x = 15,707.52 × 6,326.72
4. Step 4: Simplify right side
   10,485.60x = 99,377,080.93
5. Step 5: Solve for x
   x = 99,377,080.93/10,485.60
6. Step 6: Final answer
   x = 9,477.48