Finding the Fourth Proportional to 6,300.78, 8,698.82 and 5,600.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,300.78 : 8,698.82 = 5,600.15 : x
2. Step 2: Convert to fraction form
   6,300.78/8,698.82 = 5,600.15/x
3. Step 3: Cross multiply
   6,300.78x = 8,698.82 × 5,600.15
4. Step 4: Simplify right side
   6,300.78x = 48,714,657.95
5. Step 5: Solve for x
   x = 48,714,657.95/6,300.78
6. Step 6: Final answer
   x = 7,731.53