Finding the Fourth Proportional to 8,131.69, 12,192.06 and 3,746.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.69 : 12,192.06 = 3,746.75 : x
2. Step 2: Convert to fraction form
   8,131.69/12,192.06 = 3,746.75/x
3. Step 3: Cross multiply
   8,131.69x = 12,192.06 × 3,746.75
4. Step 4: Simplify right side
   8,131.69x = 45,680,600.81
5. Step 5: Solve for x
   x = 45,680,600.81/8,131.69
6. Step 6: Final answer
   x = 5,617.60