Finding the Fourth Proportional to 10,061.78, 13,885.29 and 5,586.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,061.78 : 13,885.29 = 5,586.17 : x
2. Step 2: Convert to fraction form
   10,061.78/13,885.29 = 5,586.17/x
3. Step 3: Cross multiply
   10,061.78x = 13,885.29 × 5,586.17
4. Step 4: Simplify right side
   10,061.78x = 77,565,521.01
5. Step 5: Solve for x
   x = 77,565,521.01/10,061.78
6. Step 6: Final answer
   x = 7,708.93