Finding the Fourth Proportional to 191,158.25, 263,788.25 and 105,115.59

Step by Step Solution

1. Step 1: Write the proportion equation
   191,158.25 : 263,788.25 = 105,115.59 : x
2. Step 2: Convert to fraction form
   191,158.25/263,788.25 = 105,115.59/x
3. Step 3: Cross multiply
   191,158.25x = 263,788.25 × 105,115.59
4. Step 4: Simplify right side
   191,158.25x = 27,728,257,008.24
5. Step 5: Solve for x
   x = 27,728,257,008.24/191,158.25
6. Step 6: Final answer
   x = 145,053.94