Finding the Fourth Proportional to 6,440.31, 8,887.32 and 3,607.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,440.31 : 8,887.32 = 3,607.34 : x
2. Step 2: Convert to fraction form
   6,440.31/8,887.32 = 3,607.34/x
3. Step 3: Cross multiply
   6,440.31x = 8,887.32 × 3,607.34
4. Step 4: Simplify right side
   6,440.31x = 32,059,540.49
5. Step 5: Solve for x
   x = 32,059,540.49/6,440.31
6. Step 6: Final answer
   x = 4,977.95