Finding the Fourth Proportional to 238,300.79, 357,449.97 and 111,940.37

Step by Step Solution

1. Step 1: Write the proportion equation
   238,300.79 : 357,449.97 = 111,940.37 : x
2. Step 2: Convert to fraction form
   238,300.79/357,449.97 = 111,940.37/x
3. Step 3: Cross multiply
   238,300.79x = 357,449.97 × 111,940.37
4. Step 4: Simplify right side
   238,300.79x = 40,013,080,111.04
5. Step 5: Solve for x
   x = 40,013,080,111.04/238,300.79
6. Step 6: Final answer
   x = 167,909.98