Finding the Fourth Proportional to 6,566.51, 9,061.87 and 3,915.45

Step by Step Solution

1. Step 1: Write the proportion equation
   6,566.51 : 9,061.87 = 3,915.45 : x
2. Step 2: Convert to fraction form
   6,566.51/9,061.87 = 3,915.45/x
3. Step 3: Cross multiply
   6,566.51x = 9,061.87 × 3,915.45
4. Step 4: Simplify right side
   6,566.51x = 35,481,298.89
5. Step 5: Solve for x
   x = 35,481,298.89/6,566.51
6. Step 6: Final answer
   x = 5,403.37