Finding the Fourth Proportional to 10,406.76, 15,612.42 and 3,011.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,406.76 : 15,612.42 = 3,011.51 : x
2. Step 2: Convert to fraction form
   10,406.76/15,612.42 = 3,011.51/x
3. Step 3: Cross multiply
   10,406.76x = 15,612.42 × 3,011.51
4. Step 4: Simplify right side
   10,406.76x = 47,016,880.89
5. Step 5: Solve for x
   x = 47,016,880.89/10,406.76
6. Step 6: Final answer
   x = 4,517.92