Finding the Fourth Proportional to 11,688.84, 17,527.59 and 4,291.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,688.84 : 17,527.59 = 4,291.38 : x
2. Step 2: Convert to fraction form
   11,688.84/17,527.59 = 4,291.38/x
3. Step 3: Cross multiply
   11,688.84x = 17,527.59 × 4,291.38
4. Step 4: Simplify right side
   11,688.84x = 75,217,549.17
5. Step 5: Solve for x
   x = 75,217,549.17/11,688.84
6. Step 6: Final answer
   x = 6,434.99