Finding the Fourth Proportional to 6,402.01, 9,603.32 and 3,111.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,402.01 : 9,603.32 = 3,111.18 : x
2. Step 2: Convert to fraction form
   6,402.01/9,603.32 = 3,111.18/x
3. Step 3: Cross multiply
   6,402.01x = 9,603.32 × 3,111.18
4. Step 4: Simplify right side
   6,402.01x = 29,877,641.56
5. Step 5: Solve for x
   x = 29,877,641.56/6,402.01
6. Step 6: Final answer
   x = 4,666.92