Finding the Fourth Proportional to 10,116.72, 15,175.06 and 3,191.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,116.72 : 15,175.06 = 3,191.76 : x
2. Step 2: Convert to fraction form
   10,116.72/15,175.06 = 3,191.76/x
3. Step 3: Cross multiply
   10,116.72x = 15,175.06 × 3,191.76
4. Step 4: Simplify right side
   10,116.72x = 48,435,149.51
5. Step 5: Solve for x
   x = 48,435,149.51/10,116.72
6. Step 6: Final answer
   x = 4,787.63