Finding the Fourth Proportional to 5,061.72, 6,998.22 and 3,886.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,061.72 : 6,998.22 = 3,886.68 : x
2. Step 2: Convert to fraction form
   5,061.72/6,998.22 = 3,886.68/x
3. Step 3: Cross multiply
   5,061.72x = 6,998.22 × 3,886.68
4. Step 4: Simplify right side
   5,061.72x = 27,199,841.71
5. Step 5: Solve for x
   x = 27,199,841.71/5,061.72
6. Step 6: Final answer
   x = 5,373.64