Finding the Fourth Proportional to 105,791.54, 158,308.16 and 91,608.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105,791.54 : 158,308.16 = 91,608.84 : x
2. Step 2: Convert to fraction form
   105,791.54/158,308.16 = 91,608.84/x
3. Step 3: Cross multiply
   105,791.54x = 158,308.16 × 91,608.84
4. Step 4: Simplify right side
   105,791.54x = 14,502,426,442.09
5. Step 5: Solve for x
   x = 14,502,426,442.09/105,791.54
6. Step 6: Final answer
   x = 137,084.94