Finding the Fourth Proportional to 49,392.61, 68,018.20 and 42,929.42

Step by Step Solution

1. Step 1: Write the proportion equation
   49,392.61 : 68,018.20 = 42,929.42 : x
2. Step 2: Convert to fraction form
   49,392.61/68,018.20 = 42,929.42/x
3. Step 3: Cross multiply
   49,392.61x = 68,018.20 × 42,929.42
4. Step 4: Simplify right side
   49,392.61x = 2,919,981,428.03
5. Step 5: Solve for x
   x = 2,919,981,428.03/49,392.61
6. Step 6: Final answer
   x = 59,117.78