Finding the Fourth Proportional to 6,567.50, 9,061.91 and 3,915.16

Step by Step Solution

1. Step 1: Write the proportion equation
   6,567.50 : 9,061.91 = 3,915.16 : x
2. Step 2: Convert to fraction form
   6,567.50/9,061.91 = 3,915.16/x
3. Step 3: Cross multiply
   6,567.50x = 9,061.91 × 3,915.16
4. Step 4: Simplify right side
   6,567.50x = 35,478,782.25
5. Step 5: Solve for x
   x = 35,478,782.25/6,567.50
6. Step 6: Final answer
   x = 5,402.17