Finding the Fourth Proportional to 139,050.27, 208,414.74 and 64,013.10

Step by Step Solution

1. Step 1: Write the proportion equation
   139,050.27 : 208,414.74 = 64,013.10 : x
2. Step 2: Convert to fraction form
   139,050.27/208,414.74 = 64,013.10/x
3. Step 3: Cross multiply
   139,050.27x = 208,414.74 × 64,013.10
4. Step 4: Simplify right side
   139,050.27x = 13,341,273,593.09
5. Step 5: Solve for x
   x = 13,341,273,593.09/139,050.27
6. Step 6: Final answer
   x = 95,945.69