Finding the Fourth Proportional to 138,499.71, 207,786.58 and 49,753.98

Step by Step Solution

1. Step 1: Write the proportion equation
   138,499.71 : 207,786.58 = 49,753.98 : x
2. Step 2: Convert to fraction form
   138,499.71/207,786.58 = 49,753.98/x
3. Step 3: Cross multiply
   138,499.71x = 207,786.58 × 49,753.98
4. Step 4: Simplify right side
   138,499.71x = 10,338,209,345.59
5. Step 5: Solve for x
   x = 10,338,209,345.59/138,499.71
6. Step 6: Final answer
   x = 74,644.27