Finding the Fourth Proportional to 5,510.42, 7,603.86 and 3,120.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,510.42 : 7,603.86 = 3,120.50 : x
2. Step 2: Convert to fraction form
   5,510.42/7,603.86 = 3,120.50/x
3. Step 3: Cross multiply
   5,510.42x = 7,603.86 × 3,120.50
4. Step 4: Simplify right side
   5,510.42x = 23,727,845.13
5. Step 5: Solve for x
   x = 23,727,845.13/5,510.42
6. Step 6: Final answer
   x = 4,306.00