Finding the Fourth Proportional to 9,320.18, 12,861.74 and 5,071.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,320.18 : 12,861.74 = 5,071.37 : x
2. Step 2: Convert to fraction form
   9,320.18/12,861.74 = 5,071.37/x
3. Step 3: Cross multiply
   9,320.18x = 12,861.74 × 5,071.37
4. Step 4: Simplify right side
   9,320.18x = 65,226,590.75
5. Step 5: Solve for x
   x = 65,226,590.75/9,320.18
6. Step 6: Final answer
   x = 6,998.43