Finding the Fourth Proportional to 202,061.68, 278,839.15 and 111,417.62

Step by Step Solution

1. Step 1: Write the proportion equation
   202,061.68 : 278,839.15 = 111,417.62 : x
2. Step 2: Convert to fraction form
   202,061.68/278,839.15 = 111,417.62/x
3. Step 3: Cross multiply
   202,061.68x = 278,839.15 × 111,417.62
4. Step 4: Simplify right side
   202,061.68x = 31,067,594,455.82
5. Step 5: Solve for x
   x = 31,067,594,455.82/202,061.68
6. Step 6: Final answer
   x = 153,753.02