Finding the Fourth Proportional to 7,887.35, 10,886.42 and 5,061.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,887.35 : 10,886.42 = 5,061.42 : x
2. Step 2: Convert to fraction form
   7,887.35/10,886.42 = 5,061.42/x
3. Step 3: Cross multiply
   7,887.35x = 10,886.42 × 5,061.42
4. Step 4: Simplify right side
   7,887.35x = 55,100,718.61
5. Step 5: Solve for x
   x = 55,100,718.61/7,887.35
6. Step 6: Final answer
   x = 6,985.97