Finding the Fourth Proportional to 147,099.67, 220,439.01 and 83,789.10

Step by Step Solution

1. Step 1: Write the proportion equation
   147,099.67 : 220,439.01 = 83,789.10 : x
2. Step 2: Convert to fraction form
   147,099.67/220,439.01 = 83,789.10/x
3. Step 3: Cross multiply
   147,099.67x = 220,439.01 × 83,789.10
4. Step 4: Simplify right side
   147,099.67x = 18,470,385,047.88
5. Step 5: Solve for x
   x = 18,470,385,047.88/147,099.67
6. Step 6: Final answer
   x = 125,563.74