Finding the Fourth Proportional to 16,710.40, 25,064.69 and 5,615.93

Step by Step Solution

1. Step 1: Write the proportion equation
   16,710.40 : 25,064.69 = 5,615.93 : x
2. Step 2: Convert to fraction form
   16,710.40/25,064.69 = 5,615.93/x
3. Step 3: Cross multiply
   16,710.40x = 25,064.69 × 5,615.93
4. Step 4: Simplify right side
   16,710.40x = 140,761,544.51
5. Step 5: Solve for x
   x = 140,761,544.51/16,710.40
6. Step 6: Final answer
   x = 8,423.59