Finding the Fourth Proportional to 147,888.56, 204,087.72 and 80,820.56

Step by Step Solution

1. Step 1: Write the proportion equation
   147,888.56 : 204,087.72 = 80,820.56 : x
2. Step 2: Convert to fraction form
   147,888.56/204,087.72 = 80,820.56/x
3. Step 3: Cross multiply
   147,888.56x = 204,087.72 × 80,820.56
4. Step 4: Simplify right side
   147,888.56x = 16,494,483,819.52
5. Step 5: Solve for x
   x = 16,494,483,819.52/147,888.56
6. Step 6: Final answer
   x = 111,533.20