Finding the Fourth Proportional to 118,019.52, 162,927.18 and 79,980

Step by Step Solution

1. Step 1: Write the proportion equation
   118,019.52 : 162,927.18 = 79,980 : x
2. Step 2: Convert to fraction form
   118,019.52/162,927.18 = 79,980/x
3. Step 3: Cross multiply
   118,019.52x = 162,927.18 × 79,980
4. Step 4: Simplify right side
   118,019.52x = 13,030,915,856.40
5. Step 5: Solve for x
   x = 13,030,915,856.40/118,019.52
6. Step 6: Final answer
   x = 110,413.23