Finding the Fourth Proportional to 13,654.06, 18,841.89 and 7,685.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,654.06 : 18,841.89 = 7,685.98 : x
2. Step 2: Convert to fraction form
   13,654.06/18,841.89 = 7,685.98/x
3. Step 3: Cross multiply
   13,654.06x = 18,841.89 × 7,685.98
4. Step 4: Simplify right side
   13,654.06x = 144,818,389.70
5. Step 5: Solve for x
   x = 144,818,389.70/13,654.06
6. Step 6: Final answer
   x = 10,606.25