Finding the Fourth Proportional to 13,004.85, 17,941.86 and 8,531.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,004.85 : 17,941.86 = 8,531.10 : x
2. Step 2: Convert to fraction form
   13,004.85/17,941.86 = 8,531.10/x
3. Step 3: Cross multiply
   13,004.85x = 17,941.86 × 8,531.10
4. Step 4: Simplify right side
   13,004.85x = 153,063,801.85
5. Step 5: Solve for x
   x = 153,063,801.85/13,004.85
6. Step 6: Final answer
   x = 11,769.75