Finding the Fourth Proportional to 201,709.86, 278,357.31 and 111,063.93

Step by Step Solution

1. Step 1: Write the proportion equation
   201,709.86 : 278,357.31 = 111,063.93 : x
2. Step 2: Convert to fraction form
   201,709.86/278,357.31 = 111,063.93/x
3. Step 3: Cross multiply
   201,709.86x = 278,357.31 × 111,063.93
4. Step 4: Simplify right side
   201,709.86x = 30,915,456,792.83
5. Step 5: Solve for x
   x = 30,915,456,792.83/201,709.86
6. Step 6: Final answer
   x = 153,266.96