Finding the Fourth Proportional to 11,616.84, 17,429.04 and 7,913.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,616.84 : 17,429.04 = 7,913.52 : x
2. Step 2: Convert to fraction form
   11,616.84/17,429.04 = 7,913.52/x
3. Step 3: Cross multiply
   11,616.84x = 17,429.04 × 7,913.52
4. Step 4: Simplify right side
   11,616.84x = 137,925,056.62
5. Step 5: Solve for x
   x = 137,925,056.62/11,616.84
6. Step 6: Final answer
   x = 11,872.85