Finding the Fourth Proportional to 10,021.88, 13,814.22 and 7,894.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,021.88 : 13,814.22 = 7,894.04 : x
2. Step 2: Convert to fraction form
   10,021.88/13,814.22 = 7,894.04/x
3. Step 3: Cross multiply
   10,021.88x = 13,814.22 × 7,894.04
4. Step 4: Simplify right side
   10,021.88x = 109,050,005.25
5. Step 5: Solve for x
   x = 109,050,005.25/10,021.88
6. Step 6: Final answer
   x = 10,881.19