Finding the Fourth Proportional to 17,118.54, 23,613.12 and 10,830.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,118.54 : 23,613.12 = 10,830.78 : x
2. Step 2: Convert to fraction form
   17,118.54/23,613.12 = 10,830.78/x
3. Step 3: Cross multiply
   17,118.54x = 23,613.12 × 10,830.78
4. Step 4: Simplify right side
   17,118.54x = 255,748,507.83
5. Step 5: Solve for x
   x = 255,748,507.83/17,118.54
6. Step 6: Final answer
   x = 14,939.86