Finding the Fourth Proportional to 10,340.55, 15,510.90 and 2,945.00

Step by Step Solution

1. Step 1: Write the proportion equation
   10,340.55 : 15,510.90 = 2,945.00 : x
2. Step 2: Convert to fraction form
   10,340.55/15,510.90 = 2,945.00/x
3. Step 3: Cross multiply
   10,340.55x = 15,510.90 × 2,945.00
4. Step 4: Simplify right side
   10,340.55x = 45,679,522.95
5. Step 5: Solve for x
   x = 45,679,522.95/10,340.55
6. Step 6: Final answer
   x = 4,417.51