Finding the Fourth Proportional to 201,793.82, 278,477.33 and 111,150.09

Step by Step Solution

1. Step 1: Write the proportion equation
   201,793.82 : 278,477.33 = 111,150.09 : x
2. Step 2: Convert to fraction form
   201,793.82/278,477.33 = 111,150.09/x
3. Step 3: Cross multiply
   201,793.82x = 278,477.33 × 111,150.09
4. Step 4: Simplify right side
   201,793.82x = 30,952,779,736.71
5. Step 5: Solve for x
   x = 30,952,779,736.71/201,793.82
6. Step 6: Final answer
   x = 153,388.15