Finding the Fourth Proportional to 113,666.96, 156,868.96 and 65,919.88

Step by Step Solution

1. Step 1: Write the proportion equation
   113,666.96 : 156,868.96 = 65,919.88 : x
2. Step 2: Convert to fraction form
   113,666.96/156,868.96 = 65,919.88/x
3. Step 3: Cross multiply
   113,666.96x = 156,868.96 × 65,919.88
4. Step 4: Simplify right side
   113,666.96x = 10,340,783,018.92
5. Step 5: Solve for x
   x = 10,340,783,018.92/113,666.96
6. Step 6: Final answer
   x = 90,974.40