Finding the Fourth Proportional to 9,998.16, 14,978.16 and 5,602.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,998.16 : 14,978.16 = 5,602.32 : x
2. Step 2: Convert to fraction form
   9,998.16/14,978.16 = 5,602.32/x
3. Step 3: Cross multiply
   9,998.16x = 14,978.16 × 5,602.32
4. Step 4: Simplify right side
   9,998.16x = 83,912,445.33
5. Step 5: Solve for x
   x = 83,912,445.33/9,998.16
6. Step 6: Final answer
   x = 8,392.79