Finding the Fourth Proportional to 7,878.48, 10,871.91 and 5,083.98

Step by Step Solution

1. Step 1: Write the proportion equation
   7,878.48 : 10,871.91 = 5,083.98 : x
2. Step 2: Convert to fraction form
   7,878.48/10,871.91 = 5,083.98/x
3. Step 3: Cross multiply
   7,878.48x = 10,871.91 × 5,083.98
4. Step 4: Simplify right side
   7,878.48x = 55,272,573.00
5. Step 5: Solve for x
   x = 55,272,573.00/7,878.48
6. Step 6: Final answer
   x = 7,015.64