Finding the Fourth Proportional to 10,518.62, 14,493.74 and 7,155.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,518.62 : 14,493.74 = 7,155.58 : x
2. Step 2: Convert to fraction form
   10,518.62/14,493.74 = 7,155.58/x
3. Step 3: Cross multiply
   10,518.62x = 14,493.74 × 7,155.58
4. Step 4: Simplify right side
   10,518.62x = 103,711,116.07
5. Step 5: Solve for x
   x = 103,711,116.07/10,518.62
6. Step 6: Final answer
   x = 9,859.76