Finding the Fourth Proportional to 105,876.72, 146,114.64 and 63,434.34

Step by Step Solution

1. Step 1: Write the proportion equation
   105,876.72 : 146,114.64 = 63,434.34 : x
2. Step 2: Convert to fraction form
   105,876.72/146,114.64 = 63,434.34/x
3. Step 3: Cross multiply
   105,876.72x = 146,114.64 × 63,434.34
4. Step 4: Simplify right side
   105,876.72x = 9,268,685,752.74
5. Step 5: Solve for x
   x = 9,268,685,752.74/105,876.72
6. Step 6: Final answer
   x = 87,542.24