Finding the Fourth Proportional to 13,060.48, 18,025.68 and 7,758.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,060.48 : 18,025.68 = 7,758.16 : x
2. Step 2: Convert to fraction form
   13,060.48/18,025.68 = 7,758.16/x
3. Step 3: Cross multiply
   13,060.48x = 18,025.68 × 7,758.16
4. Step 4: Simplify right side
   13,060.48x = 139,846,109.55
5. Step 5: Solve for x
   x = 139,846,109.55/13,060.48
6. Step 6: Final answer
   x = 10,707.58