Finding the Fourth Proportional to 8,339.30, 12,490.42 and 5,992.26

Step by Step Solution

1. Step 1: Write the proportion equation
   8,339.30 : 12,490.42 = 5,992.26 : x
2. Step 2: Convert to fraction form
   8,339.30/12,490.42 = 5,992.26/x
3. Step 3: Cross multiply
   8,339.30x = 12,490.42 × 5,992.26
4. Step 4: Simplify right side
   8,339.30x = 74,845,844.15
5. Step 5: Solve for x
   x = 74,845,844.15/8,339.30
6. Step 6: Final answer
   x = 8,975.08