Finding the Fourth Proportional to 140,322.42, 210,336.61 and 65,380.76

Step by Step Solution

1. Step 1: Write the proportion equation
   140,322.42 : 210,336.61 = 65,380.76 : x
2. Step 2: Convert to fraction form
   140,322.42/210,336.61 = 65,380.76/x
3. Step 3: Cross multiply
   140,322.42x = 210,336.61 × 65,380.76
4. Step 4: Simplify right side
   140,322.42x = 13,751,967,417.62
5. Step 5: Solve for x
   x = 13,751,967,417.62/140,322.42
6. Step 6: Final answer
   x = 98,002.64