Finding the Fourth Proportional to 5,978.88, 8,254.74 and 5,607.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.88 : 8,254.74 = 5,607.12 : x
2. Step 2: Convert to fraction form
   5,978.88/8,254.74 = 5,607.12/x
3. Step 3: Cross multiply
   5,978.88x = 8,254.74 × 5,607.12
4. Step 4: Simplify right side
   5,978.88x = 46,285,317.75
5. Step 5: Solve for x
   x = 46,285,317.75/5,978.88
6. Step 6: Final answer
   x = 7,741.47