Finding the Fourth Proportional to 11,613.59, 17,421.53 and 3,714.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,613.59 : 17,421.53 = 3,714.12 : x
2. Step 2: Convert to fraction form
   11,613.59/17,421.53 = 3,714.12/x
3. Step 3: Cross multiply
   11,613.59x = 17,421.53 × 3,714.12
4. Step 4: Simplify right side
   11,613.59x = 64,705,565.90
5. Step 5: Solve for x
   x = 64,705,565.90/11,613.59
6. Step 6: Final answer
   x = 5,571.54