Finding the Fourth Proportional to 10,174.61, 15,259.45 and 2,779.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,174.61 : 15,259.45 = 2,779.10 : x
2. Step 2: Convert to fraction form
   10,174.61/15,259.45 = 2,779.10/x
3. Step 3: Cross multiply
   10,174.61x = 15,259.45 × 2,779.10
4. Step 4: Simplify right side
   10,174.61x = 42,407,568.70
5. Step 5: Solve for x
   x = 42,407,568.70/10,174.61
6. Step 6: Final answer
   x = 4,167.98