Finding the Fourth Proportional to 12,923.88, 17,836.62 and 7,887.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,923.88 : 17,836.62 = 7,887.03 : x
2. Step 2: Convert to fraction form
   12,923.88/17,836.62 = 7,887.03/x
3. Step 3: Cross multiply
   12,923.88x = 17,836.62 × 7,887.03
4. Step 4: Simplify right side
   12,923.88x = 140,677,957.04
5. Step 5: Solve for x
   x = 140,677,957.04/12,923.88
6. Step 6: Final answer
   x = 10,885.12