Finding the Fourth Proportional to 5,830.72, 8,747.52 and 5,185.60

Step by Step Solution

1. Step 1: Write the proportion equation
   5,830.72 : 8,747.52 = 5,185.60 : x
2. Step 2: Convert to fraction form
   5,830.72/8,747.52 = 5,185.60/x
3. Step 3: Cross multiply
   5,830.72x = 8,747.52 × 5,185.60
4. Step 4: Simplify right side
   5,830.72x = 45,361,139.71
5. Step 5: Solve for x
   x = 45,361,139.71/5,830.72
6. Step 6: Final answer
   x = 7,779.68