Finding the Fourth Proportional to 17,656.62, 26,444.61 and 8,429.10

Step by Step Solution

1. Step 1: Write the proportion equation
   17,656.62 : 26,444.61 = 8,429.10 : x
2. Step 2: Convert to fraction form
   17,656.62/26,444.61 = 8,429.10/x
3. Step 3: Cross multiply
   17,656.62x = 26,444.61 × 8,429.10
4. Step 4: Simplify right side
   17,656.62x = 222,904,262.15
5. Step 5: Solve for x
   x = 222,904,262.15/17,656.62
6. Step 6: Final answer
   x = 12,624.40