Finding the Fourth Proportional to 78,978.80, 118,410.60 and 32,207.60

Step by Step Solution

1. Step 1: Write the proportion equation
   78,978.80 : 118,410.60 = 32,207.60 : x
2. Step 2: Convert to fraction form
   78,978.80/118,410.60 = 32,207.60/x
3. Step 3: Cross multiply
   78,978.80x = 118,410.60 × 32,207.60
4. Step 4: Simplify right side
   78,978.80x = 3,813,721,240.56
5. Step 5: Solve for x
   x = 3,813,721,240.56/78,978.80
6. Step 6: Final answer
   x = 48,287.91