Finding the Fourth Proportional to 9,902.18, 14,850.51 and 3,979.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,902.18 : 14,850.51 = 3,979.05 : x
2. Step 2: Convert to fraction form
   9,902.18/14,850.51 = 3,979.05/x
3. Step 3: Cross multiply
   9,902.18x = 14,850.51 × 3,979.05
4. Step 4: Simplify right side
   9,902.18x = 59,090,921.82
5. Step 5: Solve for x
   x = 59,090,921.82/9,902.18
6. Step 6: Final answer
   x = 5,967.47