Finding the Fourth Proportional to 10,012.94, 13,801.94 and 7,885.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,012.94 : 13,801.94 = 7,885.10 : x
2. Step 2: Convert to fraction form
   10,012.94/13,801.94 = 7,885.10/x
3. Step 3: Cross multiply
   10,012.94x = 13,801.94 × 7,885.10
4. Step 4: Simplify right side
   10,012.94x = 108,829,677.09
5. Step 5: Solve for x
   x = 108,829,677.09/10,012.94
6. Step 6: Final answer
   x = 10,868.90