Finding the Fourth Proportional to 6,411.60, 8,848.98 and 4,642.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,411.60 : 8,848.98 = 4,642.56 : x
2. Step 2: Convert to fraction form
   6,411.60/8,848.98 = 4,642.56/x
3. Step 3: Cross multiply
   6,411.60x = 8,848.98 × 4,642.56
4. Step 4: Simplify right side
   6,411.60x = 41,081,920.59
5. Step 5: Solve for x
   x = 41,081,920.59/6,411.60
6. Step 6: Final answer
   x = 6,407.44