Finding the Fourth Proportional to 13,091.60, 18,086.82 and 12,041.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,091.60 : 18,086.82 = 12,041.84 : x
2. Step 2: Convert to fraction form
   13,091.60/18,086.82 = 12,041.84/x
3. Step 3: Cross multiply
   13,091.60x = 18,086.82 × 12,041.84
4. Step 4: Simplify right side
   13,091.60x = 217,798,592.55
5. Step 5: Solve for x
   x = 217,798,592.55/13,091.60
6. Step 6: Final answer
   x = 16,636.51