Finding the Fourth Proportional to 139,105.54, 208,497.12 and 64,068.22

Step by Step Solution

1. Step 1: Write the proportion equation
   139,105.54 : 208,497.12 = 64,068.22 : x
2. Step 2: Convert to fraction form
   139,105.54/208,497.12 = 64,068.22/x
3. Step 3: Cross multiply
   139,105.54x = 208,497.12 × 64,068.22
4. Step 4: Simplify right side
   139,105.54x = 13,358,039,353.53
5. Step 5: Solve for x
   x = 13,358,039,353.53/139,105.54
6. Step 6: Final answer
   x = 96,028.09