Finding the Fourth Proportional to 191,142.76, 263,771.69 and 105,101.91

Step by Step Solution

1. Step 1: Write the proportion equation
   191,142.76 : 263,771.69 = 105,101.91 : x
2. Step 2: Convert to fraction form
   191,142.76/263,771.69 = 105,101.91/x
3. Step 3: Cross multiply
   191,142.76x = 263,771.69 × 105,101.91
4. Step 4: Simplify right side
   191,142.76x = 27,722,907,897.42
5. Step 5: Solve for x
   x = 27,722,907,897.42/191,142.76
6. Step 6: Final answer
   x = 145,037.71