Finding the Fourth Proportional to 10,097.60, 15,142.72 and 3,521.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,097.60 : 15,142.72 = 3,521.92 : x
2. Step 2: Convert to fraction form
   10,097.60/15,142.72 = 3,521.92/x
3. Step 3: Cross multiply
   10,097.60x = 15,142.72 × 3,521.92
4. Step 4: Simplify right side
   10,097.60x = 53,331,448.42
5. Step 5: Solve for x
   x = 53,331,448.42/10,097.60
6. Step 6: Final answer
   x = 5,281.60