Finding the Fourth Proportional to 138,096.78, 206,894.73 and 63,279.42

Step by Step Solution

1. Step 1: Write the proportion equation
   138,096.78 : 206,894.73 = 63,279.42 : x
2. Step 2: Convert to fraction form
   138,096.78/206,894.73 = 63,279.42/x
3. Step 3: Cross multiply
   138,096.78x = 206,894.73 × 63,279.42
4. Step 4: Simplify right side
   138,096.78x = 13,092,178,515.46
5. Step 5: Solve for x
   x = 13,092,178,515.46/138,096.78
6. Step 6: Final answer
   x = 94,804.37