Finding the Fourth Proportional to 6,602.42, 9,111.23 and 3,948.32

Step by Step Solution

1. Step 1: Write the proportion equation
   6,602.42 : 9,111.23 = 3,948.32 : x
2. Step 2: Convert to fraction form
   6,602.42/9,111.23 = 3,948.32/x
3. Step 3: Cross multiply
   6,602.42x = 9,111.23 × 3,948.32
4. Step 4: Simplify right side
   6,602.42x = 35,974,051.63
5. Step 5: Solve for x
   x = 35,974,051.63/6,602.42
6. Step 6: Final answer
   x = 5,448.62