Finding the Fourth Proportional to 11,367.60, 17,056.56 and 5,124.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,367.60 : 17,056.56 = 5,124.18 : x
2. Step 2: Convert to fraction form
   11,367.60/17,056.56 = 5,124.18/x
3. Step 3: Cross multiply
   11,367.60x = 17,056.56 × 5,124.18
4. Step 4: Simplify right side
   11,367.60x = 87,400,883.62
5. Step 5: Solve for x
   x = 87,400,883.62/11,367.60
6. Step 6: Final answer
   x = 7,688.60