Finding the Fourth Proportional to 10,622.58, 14,658.70 and 7,085.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,622.58 : 14,658.70 = 7,085.32 : x
2. Step 2: Convert to fraction form
   10,622.58/14,658.70 = 7,085.32/x
3. Step 3: Cross multiply
   10,622.58x = 14,658.70 × 7,085.32
4. Step 4: Simplify right side
   10,622.58x = 103,861,580.28
5. Step 5: Solve for x
   x = 103,861,580.28/10,622.58
6. Step 6: Final answer
   x = 9,777.43