Finding the Fourth Proportional to 13,529.42, 18,671.00 and 7,561.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,529.42 : 18,671.00 = 7,561.10 : x
2. Step 2: Convert to fraction form
   13,529.42/18,671.00 = 7,561.10/x
3. Step 3: Cross multiply
   13,529.42x = 18,671.00 × 7,561.10
4. Step 4: Simplify right side
   13,529.42x = 141,173,306.97
5. Step 5: Solve for x
   x = 141,173,306.97/13,529.42
6. Step 6: Final answer
   x = 10,434.54