Finding the Fourth Proportional to 138,196.54, 207,333.69 and 49,462.66

Step by Step Solution

1. Step 1: Write the proportion equation
   138,196.54 : 207,333.69 = 49,462.66 : x
2. Step 2: Convert to fraction form
   138,196.54/207,333.69 = 49,462.66/x
3. Step 3: Cross multiply
   138,196.54x = 207,333.69 × 49,462.66
4. Step 4: Simplify right side
   138,196.54x = 10,255,275,815.02
5. Step 5: Solve for x
   x = 10,255,275,815.02/138,196.54
6. Step 6: Final answer
   x = 74,207.91