Finding the Fourth Proportional to 202,016.63, 278,784.89 and 111,375.92

Step by Step Solution

1. Step 1: Write the proportion equation
   202,016.63 : 278,784.89 = 111,375.92 : x
2. Step 2: Convert to fraction form
   202,016.63/278,784.89 = 111,375.92/x
3. Step 3: Cross multiply
   202,016.63x = 278,784.89 × 111,375.92
4. Step 4: Simplify right side
   202,016.63x = 31,049,923,605.85
5. Step 5: Solve for x
   x = 31,049,923,605.85/202,016.63
6. Step 6: Final answer
   x = 153,699.84