Finding the Fourth Proportional to 6,602.32, 9,111.18 and 3,948.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,602.32 : 9,111.18 = 3,948.76 : x
2. Step 2: Convert to fraction form
   6,602.32/9,111.18 = 3,948.76/x
3. Step 3: Cross multiply
   6,602.32x = 9,111.18 × 3,948.76
4. Step 4: Simplify right side
   6,602.32x = 35,977,863.14
5. Step 5: Solve for x
   x = 35,977,863.14/6,602.32
6. Step 6: Final answer
   x = 5,449.28