Finding the Fourth Proportional to 9,678.59, 14,526.79 and 5,988.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,678.59 : 14,526.79 = 5,988.02 : x
2. Step 2: Convert to fraction form
   9,678.59/14,526.79 = 5,988.02/x
3. Step 3: Cross multiply
   9,678.59x = 14,526.79 × 5,988.02
4. Step 4: Simplify right side
   9,678.59x = 86,986,730.40
5. Step 5: Solve for x
   x = 86,986,730.40/9,678.59
6. Step 6: Final answer
   x = 8,987.55