Finding the Fourth Proportional to 11,758.34, 17,611.59 and 7,131.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,758.34 : 17,611.59 = 7,131.62 : x
2. Step 2: Convert to fraction form
   11,758.34/17,611.59 = 7,131.62/x
3. Step 3: Cross multiply
   11,758.34x = 17,611.59 × 7,131.62
4. Step 4: Simplify right side
   11,758.34x = 125,599,167.48
5. Step 5: Solve for x
   x = 125,599,167.48/11,758.34
6. Step 6: Final answer
   x = 10,681.71