Finding the Fourth Proportional to 13,554.59, 18,705.06 and 7,892.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,554.59 : 18,705.06 = 7,892.69 : x
2. Step 2: Convert to fraction form
   13,554.59/18,705.06 = 7,892.69/x
3. Step 3: Cross multiply
   13,554.59x = 18,705.06 × 7,892.69
4. Step 4: Simplify right side
   13,554.59x = 147,633,146.49
5. Step 5: Solve for x
   x = 147,633,146.49/13,554.59
6. Step 6: Final answer
   x = 10,891.75