Finding the Fourth Proportional to 147,928.50, 204,141.34 and 80,860.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,928.50 : 204,141.34 = 80,860.50 : x
2. Step 2: Convert to fraction form
   147,928.50/204,141.34 = 80,860.50/x
3. Step 3: Cross multiply
   147,928.50x = 204,141.34 × 80,860.50
4. Step 4: Simplify right side
   147,928.50x = 16,506,970,823.07
5. Step 5: Solve for x
   x = 16,506,970,823.07/147,928.50
6. Step 6: Final answer
   x = 111,587.50