Finding the Fourth Proportional to 116,119.32, 160,246.53 and 65,143.40

Step by Step Solution

1. Step 1: Write the proportion equation
   116,119.32 : 160,246.53 = 65,143.40 : x
2. Step 2: Convert to fraction form
   116,119.32/160,246.53 = 65,143.40/x
3. Step 3: Cross multiply
   116,119.32x = 160,246.53 × 65,143.40
4. Step 4: Simplify right side
   116,119.32x = 10,439,003,001.17
5. Step 5: Solve for x
   x = 10,439,003,001.17/116,119.32
6. Step 6: Final answer
   x = 89,898.93