Finding the Fourth Proportional to 139,104.54, 208,495.62 and 64,067.22

Step by Step Solution

1. Step 1: Write the proportion equation
   139,104.54 : 208,495.62 = 64,067.22 : x
2. Step 2: Convert to fraction form
   139,104.54/208,495.62 = 64,067.22/x
3. Step 3: Cross multiply
   139,104.54x = 208,495.62 × 64,067.22
4. Step 4: Simplify right side
   139,104.54x = 13,357,734,755.58
5. Step 5: Solve for x
   x = 13,357,734,755.58/139,104.54
6. Step 6: Final answer
   x = 96,026.59