Finding the Fourth Proportional to 202,061.43, 278,838.80 and 111,417.38

Step by Step Solution

1. Step 1: Write the proportion equation
   202,061.43 : 278,838.80 = 111,417.38 : x
2. Step 2: Convert to fraction form
   202,061.43/278,838.80 = 111,417.38/x
3. Step 3: Cross multiply
   202,061.43x = 278,838.80 × 111,417.38
4. Step 4: Simplify right side
   202,061.43x = 31,067,487,422.69
5. Step 5: Solve for x
   x = 31,067,487,422.69/202,061.43
6. Step 6: Final answer
   x = 153,752.69