Finding the Fourth Proportional to 7,815.61, 10,774.29 and 5,573.58

Step by Step Solution

1. Step 1: Write the proportion equation
   7,815.61 : 10,774.29 = 5,573.58 : x
2. Step 2: Convert to fraction form
   7,815.61/10,774.29 = 5,573.58/x
3. Step 3: Cross multiply
   7,815.61x = 10,774.29 × 5,573.58
4. Step 4: Simplify right side
   7,815.61x = 60,051,367.26
5. Step 5: Solve for x
   x = 60,051,367.26/7,815.61
6. Step 6: Final answer
   x = 7,683.52