Finding the Fourth Proportional to 9,841.38, 13,579.98 and 5,861.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,841.38 : 13,579.98 = 5,861.72 : x
2. Step 2: Convert to fraction form
   9,841.38/13,579.98 = 5,861.72/x
3. Step 3: Cross multiply
   9,841.38x = 13,579.98 × 5,861.72
4. Step 4: Simplify right side
   9,841.38x = 79,602,040.37
5. Step 5: Solve for x
   x = 79,602,040.37/9,841.38
6. Step 6: Final answer
   x = 8,088.50