Finding the Fourth Proportional to 9,998.79, 14,985.18 and 4,068.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,998.79 : 14,985.18 = 4,068.78 : x
2. Step 2: Convert to fraction form
   9,998.79/14,985.18 = 4,068.78/x
3. Step 3: Cross multiply
   9,998.79x = 14,985.18 × 4,068.78
4. Step 4: Simplify right side
   9,998.79x = 60,971,417.33
5. Step 5: Solve for x
   x = 60,971,417.33/9,998.79
6. Step 6: Final answer
   x = 6,097.88