Finding the Fourth Proportional to 13,529.39, 18,669.86 and 7,559.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,529.39 : 18,669.86 = 7,559.89 : x
2. Step 2: Convert to fraction form
   13,529.39/18,669.86 = 7,559.89/x
3. Step 3: Cross multiply
   13,529.39x = 18,669.86 × 7,559.89
4. Step 4: Simplify right side
   13,529.39x = 141,142,031.79
5. Step 5: Solve for x
   x = 141,142,031.79/13,529.39
6. Step 6: Final answer
   x = 10,432.26