Finding the Fourth Proportional to 6,985.33, 10,484.88 and 5,131.24

Step by Step Solution

1. Step 1: Write the proportion equation
   6,985.33 : 10,484.88 = 5,131.24 : x
2. Step 2: Convert to fraction form
   6,985.33/10,484.88 = 5,131.24/x
3. Step 3: Cross multiply
   6,985.33x = 10,484.88 × 5,131.24
4. Step 4: Simplify right side
   6,985.33x = 53,800,435.65
5. Step 5: Solve for x
   x = 53,800,435.65/6,985.33
6. Step 6: Final answer
   x = 7,701.92