Finding the Fourth Proportional to 139,052.14, 208,640.22 and 64,132

Step by Step Solution

1. Step 1: Write the proportion equation
   139,052.14 : 208,640.22 = 64,132 : x
2. Step 2: Convert to fraction form
   139,052.14/208,640.22 = 64,132/x
3. Step 3: Cross multiply
   139,052.14x = 208,640.22 × 64,132
4. Step 4: Simplify right side
   139,052.14x = 13,380,514,589.04
5. Step 5: Solve for x
   x = 13,380,514,589.04/139,052.14
6. Step 6: Final answer
   x = 96,226.60