Finding the Fourth Proportional to 7,175.02, 9,900.61 and 4,188.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,175.02 : 9,900.61 = 4,188.69 : x
2. Step 2: Convert to fraction form
   7,175.02/9,900.61 = 4,188.69/x
3. Step 3: Cross multiply
   7,175.02x = 9,900.61 × 4,188.69
4. Step 4: Simplify right side
   7,175.02x = 41,470,586.10
5. Step 5: Solve for x
   x = 41,470,586.10/7,175.02
6. Step 6: Final answer
   x = 5,779.86