Finding the Fourth Proportional to 146,240.78, 219,387.89 and 46,426.10

Step by Step Solution

1. Step 1: Write the proportion equation
   146,240.78 : 219,387.89 = 46,426.10 : x
2. Step 2: Convert to fraction form
   146,240.78/219,387.89 = 46,426.10/x
3. Step 3: Cross multiply
   146,240.78x = 219,387.89 × 46,426.10
4. Step 4: Simplify right side
   146,240.78x = 10,185,323,139.05
5. Step 5: Solve for x
   x = 10,185,323,139.05/146,240.78
6. Step 6: Final answer
   x = 69,647.63