Finding the Fourth Proportional to 102,952.83, 154,138.05 and 65,419.86

Step by Step Solution

1. Step 1: Write the proportion equation
   102,952.83 : 154,138.05 = 65,419.86 : x
2. Step 2: Convert to fraction form
   102,952.83/154,138.05 = 65,419.86/x
3. Step 3: Cross multiply
   102,952.83x = 154,138.05 × 65,419.86
4. Step 4: Simplify right side
   102,952.83x = 10,083,689,651.67
5. Step 5: Solve for x
   x = 10,083,689,651.67/102,952.83
6. Step 6: Final answer
   x = 97,944.75