Finding the Fourth Proportional to 105,948.64, 159,061.86 and 71,044.48

Step by Step Solution

1. Step 1: Write the proportion equation
   105,948.64 : 159,061.86 = 71,044.48 : x
2. Step 2: Convert to fraction form
   105,948.64/159,061.86 = 71,044.48/x
3. Step 3: Cross multiply
   105,948.64x = 159,061.86 × 71,044.48
4. Step 4: Simplify right side
   105,948.64x = 11,300,467,131.53
5. Step 5: Solve for x
   x = 11,300,467,131.53/105,948.64
6. Step 6: Final answer
   x = 106,659.86