Finding the Fourth Proportional to 147,067.30, 202,957.41 and 83,407.78

Step by Step Solution

1. Step 1: Write the proportion equation
   147,067.30 : 202,957.41 = 83,407.78 : x
2. Step 2: Convert to fraction form
   147,067.30/202,957.41 = 83,407.78/x
3. Step 3: Cross multiply
   147,067.30x = 202,957.41 × 83,407.78
4. Step 4: Simplify right side
   147,067.30x = 16,928,227,002.65
5. Step 5: Solve for x
   x = 16,928,227,002.65/147,067.30
6. Step 6: Final answer
   x = 115,105.31