Finding the Fourth Proportional to 307,510.72, 424,146.72 and 199,882.24

Step by Step Solution

1. Step 1: Write the proportion equation
   307,510.72 : 424,146.72 = 199,882.24 : x
2. Step 2: Convert to fraction form
   307,510.72/424,146.72 = 199,882.24/x
3. Step 3: Cross multiply
   307,510.72x = 424,146.72 × 199,882.24
4. Step 4: Simplify right side
   307,510.72x = 84,779,396,482.25
5. Step 5: Solve for x
   x = 84,779,396,482.25/307,510.72
6. Step 6: Final answer
   x = 275,695.74