Finding the Fourth Proportional to 13,526.88, 18,667.05 and 7,558.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,526.88 : 18,667.05 = 7,558.55 : x
2. Step 2: Convert to fraction form
   13,526.88/18,667.05 = 7,558.55/x
3. Step 3: Cross multiply
   13,526.88x = 18,667.05 × 7,558.55
4. Step 4: Simplify right side
   13,526.88x = 141,095,759.31
5. Step 5: Solve for x
   x = 141,095,759.31/13,526.88
6. Step 6: Final answer
   x = 10,430.77