Finding the Fourth Proportional to 105,927.93, 158,930.82 and 99,668.25

Step by Step Solution

1. Step 1: Write the proportion equation
   105,927.93 : 158,930.82 = 99,668.25 : x
2. Step 2: Convert to fraction form
   105,927.93/158,930.82 = 99,668.25/x
3. Step 3: Cross multiply
   105,927.93x = 158,930.82 × 99,668.25
4. Step 4: Simplify right side
   105,927.93x = 15,840,356,700.47
5. Step 5: Solve for x
   x = 15,840,356,700.47/105,927.93
6. Step 6: Final answer
   x = 149,539.00