Finding the Fourth Proportional to 8,997.60, 13,470.72 and 7,151.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,997.60 : 13,470.72 = 7,151.34 : x
2. Step 2: Convert to fraction form
   8,997.60/13,470.72 = 7,151.34/x
3. Step 3: Cross multiply
   8,997.60x = 13,470.72 × 7,151.34
4. Step 4: Simplify right side
   8,997.60x = 96,333,698.76
5. Step 5: Solve for x
   x = 96,333,698.76/8,997.60
6. Step 6: Final answer
   x = 10,706.60