Finding the Fourth Proportional to 10,662.40, 14,706.17 and 7,828.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,662.40 : 14,706.17 = 7,828.88 : x
2. Step 2: Convert to fraction form
   10,662.40/14,706.17 = 7,828.88/x
3. Step 3: Cross multiply
   10,662.40x = 14,706.17 × 7,828.88
4. Step 4: Simplify right side
   10,662.40x = 115,132,840.19
5. Step 5: Solve for x
   x = 115,132,840.19/10,662.40
6. Step 6: Final answer
   x = 10,798.03