Finding the Fourth Proportional to 10,066.48, 13,890.72 and 5,877.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,066.48 : 13,890.72 = 5,877.16 : x
2. Step 2: Convert to fraction form
   10,066.48/13,890.72 = 5,877.16/x
3. Step 3: Cross multiply
   10,066.48x = 13,890.72 × 5,877.16
4. Step 4: Simplify right side
   10,066.48x = 81,637,949.23
5. Step 5: Solve for x
   x = 81,637,949.23/10,066.48
6. Step 6: Final answer
   x = 8,109.88