Finding the Fourth Proportional to 9,643.18, 13,308.10 and 5,865.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,643.18 : 13,308.10 = 5,865.74 : x
2. Step 2: Convert to fraction form
   9,643.18/13,308.10 = 5,865.74/x
3. Step 3: Cross multiply
   9,643.18x = 13,308.10 × 5,865.74
4. Step 4: Simplify right side
   9,643.18x = 78,061,854.49
5. Step 5: Solve for x
   x = 78,061,854.49/9,643.18
6. Step 6: Final answer
   x = 8,095.03