Finding the Fourth Proportional to 10,055.52, 13,878.06 and 5,805.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,055.52 : 13,878.06 = 5,805.74 : x
2. Step 2: Convert to fraction form
   10,055.52/13,878.06 = 5,805.74/x
3. Step 3: Cross multiply
   10,055.52x = 13,878.06 × 5,805.74
4. Step 4: Simplify right side
   10,055.52x = 80,572,408.06
5. Step 5: Solve for x
   x = 80,572,408.06/10,055.52
6. Step 6: Final answer
   x = 8,012.75