Finding the Fourth Proportional to 53,280.72, 73,479.94 and 34,398

Step by Step Solution

1. Step 1: Write the proportion equation
   53,280.72 : 73,479.94 = 34,398 : x
2. Step 2: Convert to fraction form
   53,280.72/73,479.94 = 34,398/x
3. Step 3: Cross multiply
   53,280.72x = 73,479.94 × 34,398
4. Step 4: Simplify right side
   53,280.72x = 2,527,562,976.12
5. Step 5: Solve for x
   x = 2,527,562,976.12/53,280.72
6. Step 6: Final answer
   x = 47,438.60