Finding the Fourth Proportional to 8,337.37, 12,520.38 and 7,402.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,337.37 : 12,520.38 = 7,402.42 : x
2. Step 2: Convert to fraction form
   8,337.37/12,520.38 = 7,402.42/x
3. Step 3: Cross multiply
   8,337.37x = 12,520.38 × 7,402.42
4. Step 4: Simplify right side
   8,337.37x = 92,681,111.32
5. Step 5: Solve for x
   x = 92,681,111.32/8,337.37
6. Step 6: Final answer
   x = 11,116.35