Finding the Fourth Proportional to 105,948.14, 159,061.11 and 71,043.98

Step by Step Solution

1. Step 1: Write the proportion equation
   105,948.14 : 159,061.11 = 71,043.98 : x
2. Step 2: Convert to fraction form
   105,948.14/159,061.11 = 71,043.98/x
3. Step 3: Cross multiply
   105,948.14x = 159,061.11 × 71,043.98
4. Step 4: Simplify right side
   105,948.14x = 11,300,334,317.62
5. Step 5: Solve for x
   x = 11,300,334,317.62/105,948.14
6. Step 6: Final answer
   x = 106,659.11