Finding the Fourth Proportional to 130,408.82, 179,951.72 and 103,616.18

Step by Step Solution

1. Step 1: Write the proportion equation
   130,408.82 : 179,951.72 = 103,616.18 : x
2. Step 2: Convert to fraction form
   130,408.82/179,951.72 = 103,616.18/x
3. Step 3: Cross multiply
   130,408.82x = 179,951.72 × 103,616.18
4. Step 4: Simplify right side
   130,408.82x = 18,645,909,810.83
5. Step 5: Solve for x
   x = 18,645,909,810.83/130,408.82
6. Step 6: Final answer
   x = 142,980.43