Finding the Fourth Proportional to 12,225.31, 18,347.15 and 5,656.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,225.31 : 18,347.15 = 5,656.10 : x
2. Step 2: Convert to fraction form
   12,225.31/18,347.15 = 5,656.10/x
3. Step 3: Cross multiply
   12,225.31x = 18,347.15 × 5,656.10
4. Step 4: Simplify right side
   12,225.31x = 103,773,237.52
5. Step 5: Solve for x
   x = 103,773,237.52/12,225.31
6. Step 6: Final answer
   x = 8,488.39