Finding the Fourth Proportional to 10,688.47, 14,725.94 and 7,455.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,688.47 : 14,725.94 = 7,455.18 : x
2. Step 2: Convert to fraction form
   10,688.47/14,725.94 = 7,455.18/x
3. Step 3: Cross multiply
   10,688.47x = 14,725.94 × 7,455.18
4. Step 4: Simplify right side
   10,688.47x = 109,784,551.32
5. Step 5: Solve for x
   x = 109,784,551.32/10,688.47
6. Step 6: Final answer
   x = 10,271.31