Finding the Fourth Proportional to 191,103.91, 263,726.53 and 105,066.52

Step by Step Solution

1. Step 1: Write the proportion equation
   191,103.91 : 263,726.53 = 105,066.52 : x
2. Step 2: Convert to fraction form
   191,103.91/263,726.53 = 105,066.52/x
3. Step 3: Cross multiply
   191,103.91x = 263,726.53 × 105,066.52
4. Step 4: Simplify right side
   191,103.91x = 27,708,828,407.79
5. Step 5: Solve for x
   x = 27,708,828,407.79/191,103.91
6. Step 6: Final answer
   x = 144,993.52