Finding the Fourth Proportional to 238,992.43, 358,406.01 and 105,965.72

Step by Step Solution

1. Step 1: Write the proportion equation
   238,992.43 : 358,406.01 = 105,965.72 : x
2. Step 2: Convert to fraction form
   238,992.43/358,406.01 = 105,965.72/x
3. Step 3: Cross multiply
   238,992.43x = 358,406.01 × 105,965.72
4. Step 4: Simplify right side
   238,992.43x = 37,978,750,901.98
5. Step 5: Solve for x
   x = 37,978,750,901.98/238,992.43
6. Step 6: Final answer
   x = 158,911.94