Finding the Fourth Proportional to 140,132.10, 210,196.76 and 64,209.12

Step by Step Solution

1. Step 1: Write the proportion equation
   140,132.10 : 210,196.76 = 64,209.12 : x
2. Step 2: Convert to fraction form
   140,132.10/210,196.76 = 64,209.12/x
3. Step 3: Cross multiply
   140,132.10x = 210,196.76 × 64,209.12
4. Step 4: Simplify right side
   140,132.10x = 13,496,548,986.45
5. Step 5: Solve for x
   x = 13,496,548,986.45/140,132.10
6. Step 6: Final answer
   x = 96,313.04