Finding the Fourth Proportional to 191,693.69, 264,552.50 and 105,667.97

Step by Step Solution

1. Step 1: Write the proportion equation
   191,693.69 : 264,552.50 = 105,667.97 : x
2. Step 2: Convert to fraction form
   191,693.69/264,552.50 = 105,667.97/x
3. Step 3: Cross multiply
   191,693.69x = 264,552.50 × 105,667.97
4. Step 4: Simplify right side
   191,693.69x = 27,954,723,782.32
5. Step 5: Solve for x
   x = 27,954,723,782.32/191,693.69
6. Step 6: Final answer
   x = 145,830.18