Finding the Fourth Proportional to 140,099.59, 210,147.42 and 65,177.83

Step by Step Solution

1. Step 1: Write the proportion equation
   140,099.59 : 210,147.42 = 65,177.83 : x
2. Step 2: Convert to fraction form
   140,099.59/210,147.42 = 65,177.83/x
3. Step 3: Cross multiply
   140,099.59x = 210,147.42 × 65,177.83
4. Step 4: Simplify right side
   140,099.59x = 13,696,952,815.70
5. Step 5: Solve for x
   x = 13,696,952,815.70/140,099.59
6. Step 6: Final answer
   x = 97,765.83