Finding the Fourth Proportional to 275,103.72, 412,573.34 and 82,970.10

Step by Step Solution

1. Step 1: Write the proportion equation
   275,103.72 : 412,573.34 = 82,970.10 : x
2. Step 2: Convert to fraction form
   275,103.72/412,573.34 = 82,970.10/x
3. Step 3: Cross multiply
   275,103.72x = 412,573.34 × 82,970.10
4. Step 4: Simplify right side
   275,103.72x = 34,231,251,277.13
5. Step 5: Solve for x
   x = 34,231,251,277.13/275,103.72
6. Step 6: Final answer
   x = 124,430.35