Finding the Fourth Proportional to 5,985.69, 8,256.02 and 5,187.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,985.69 : 8,256.02 = 5,187.57 : x
2. Step 2: Convert to fraction form
   5,985.69/8,256.02 = 5,187.57/x
3. Step 3: Cross multiply
   5,985.69x = 8,256.02 × 5,187.57
4. Step 4: Simplify right side
   5,985.69x = 42,828,681.67
5. Step 5: Solve for x
   x = 42,828,681.67/5,985.69
6. Step 6: Final answer
   x = 7,155.18