Finding the Fourth Proportional to 147,029.40, 220,410.72 and 53,469

Step by Step Solution

1. Step 1: Write the proportion equation
   147,029.40 : 220,410.72 = 53,469 : x
2. Step 2: Convert to fraction form
   147,029.40/220,410.72 = 53,469/x
3. Step 3: Cross multiply
   147,029.40x = 220,410.72 × 53,469
4. Step 4: Simplify right side
   147,029.40x = 11,785,140,787.68
5. Step 5: Solve for x
   x = 11,785,140,787.68/147,029.40
6. Step 6: Final answer
   x = 80,154.99