Finding the Fourth Proportional to 12,918.29, 17,827.49 and 10,088.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,918.29 : 17,827.49 = 10,088.96 : x
2. Step 2: Convert to fraction form
   12,918.29/17,827.49 = 10,088.96/x
3. Step 3: Cross multiply
   12,918.29x = 17,827.49 × 10,088.96
4. Step 4: Simplify right side
   12,918.29x = 179,860,769.60
5. Step 5: Solve for x
   x = 179,860,769.60/12,918.29
6. Step 6: Final answer
   x = 13,922.96