Finding the Fourth Proportional to 13,528.32, 18,667.86 and 7,559.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,528.32 : 18,667.86 = 7,559.16 : x
2. Step 2: Convert to fraction form
   13,528.32/18,667.86 = 7,559.16/x
3. Step 3: Cross multiply
   13,528.32x = 18,667.86 × 7,559.16
4. Step 4: Simplify right side
   13,528.32x = 141,113,340.60
5. Step 5: Solve for x
   x = 141,113,340.60/13,528.32
6. Step 6: Final answer
   x = 10,430.96