Finding the Fourth Proportional to 11,575.50, 17,356.58 and 10,191.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,575.50 : 17,356.58 = 10,191.62 : x
2. Step 2: Convert to fraction form
   11,575.50/17,356.58 = 10,191.62/x
3. Step 3: Cross multiply
   11,575.50x = 17,356.58 × 10,191.62
4. Step 4: Simplify right side
   11,575.50x = 176,891,667.86
5. Step 5: Solve for x
   x = 176,891,667.86/11,575.50
6. Step 6: Final answer
   x = 15,281.56