Finding the Fourth Proportional to 195,820.72, 293,726.97 and 105,906.31

Step by Step Solution

1. Step 1: Write the proportion equation
   195,820.72 : 293,726.97 = 105,906.31 : x
2. Step 2: Convert to fraction form
   195,820.72/293,726.97 = 105,906.31/x
3. Step 3: Cross multiply
   195,820.72x = 293,726.97 × 105,906.31
4. Step 4: Simplify right side
   195,820.72x = 31,107,538,805.86
5. Step 5: Solve for x
   x = 31,107,538,805.86/195,820.72
6. Step 6: Final answer
   x = 158,857.24