Finding the Fourth Proportional to 9,369.66, 12,926.07 and 5,641.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,369.66 : 12,926.07 = 5,641.50 : x
2. Step 2: Convert to fraction form
   9,369.66/12,926.07 = 5,641.50/x
3. Step 3: Cross multiply
   9,369.66x = 12,926.07 × 5,641.50
4. Step 4: Simplify right side
   9,369.66x = 72,922,423.91
5. Step 5: Solve for x
   x = 72,922,423.91/9,369.66
6. Step 6: Final answer
   x = 7,782.82