Finding the Fourth Proportional to 448,479.37, 672,721.49 and 116,055.37

Step by Step Solution

1. Step 1: Write the proportion equation
   448,479.37 : 672,721.49 = 116,055.37 : x
2. Step 2: Convert to fraction form
   448,479.37/672,721.49 = 116,055.37/x
3. Step 3: Cross multiply
   448,479.37x = 672,721.49 × 116,055.37
4. Step 4: Simplify right side
   448,479.37x = 78,072,941,428.90
5. Step 5: Solve for x
   x = 78,072,941,428.90/448,479.37
6. Step 6: Final answer
   x = 174,083.69