Finding the Fourth Proportional to 6,870.99, 9,473.13 and 5,610.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.99 : 9,473.13 = 5,610.72 : x
2. Step 2: Convert to fraction form
   6,870.99/9,473.13 = 5,610.72/x
3. Step 3: Cross multiply
   6,870.99x = 9,473.13 × 5,610.72
4. Step 4: Simplify right side
   6,870.99x = 53,151,079.95
5. Step 5: Solve for x
   x = 53,151,079.95/6,870.99
6. Step 6: Final answer
   x = 7,735.58