Finding the Fourth Proportional to 10,470.15, 15,705.34 and 3,074.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,470.15 : 15,705.34 = 3,074.76 : x
2. Step 2: Convert to fraction form
   10,470.15/15,705.34 = 3,074.76/x
3. Step 3: Cross multiply
   10,470.15x = 15,705.34 × 3,074.76
4. Step 4: Simplify right side
   10,470.15x = 48,290,143.53
5. Step 5: Solve for x
   x = 48,290,143.53/10,470.15
6. Step 6: Final answer
   x = 4,612.17