Finding the Fourth Proportional to 13,073.00, 19,573.61 and 9,128.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,073.00 : 19,573.61 = 9,128.18 : x
2. Step 2: Convert to fraction form
   13,073.00/19,573.61 = 9,128.18/x
3. Step 3: Cross multiply
   13,073.00x = 19,573.61 × 9,128.18
4. Step 4: Simplify right side
   13,073.00x = 178,671,438.62
5. Step 5: Solve for x
   x = 178,671,438.62/13,073.00
6. Step 6: Final answer
   x = 13,667.22