Finding the Fourth Proportional to 139,046.52, 208,409.13 and 64,009.34

Step by Step Solution

1. Step 1: Write the proportion equation
   139,046.52 : 208,409.13 = 64,009.34 : x
2. Step 2: Convert to fraction form
   139,046.52/208,409.13 = 64,009.34/x
3. Step 3: Cross multiply
   139,046.52x = 208,409.13 × 64,009.34
4. Step 4: Simplify right side
   139,046.52x = 13,340,129,819.23
5. Step 5: Solve for x
   x = 13,340,129,819.23/139,046.52
6. Step 6: Final answer
   x = 95,940.05