Finding the Fourth Proportional to 13,191.32, 18,204.98 and 7,526.19

Step by Step Solution

1. Step 1: Write the proportion equation
   13,191.32 : 18,204.98 = 7,526.19 : x
2. Step 2: Convert to fraction form
   13,191.32/18,204.98 = 7,526.19/x
3. Step 3: Cross multiply
   13,191.32x = 18,204.98 × 7,526.19
4. Step 4: Simplify right side
   13,191.32x = 137,014,142.37
5. Step 5: Solve for x
   x = 137,014,142.37/13,191.32
6. Step 6: Final answer
   x = 10,386.69