Finding the Fourth Proportional to 116,190.72, 160,337.52 and 65,880

Step by Step Solution

1. Step 1: Write the proportion equation
   116,190.72 : 160,337.52 = 65,880 : x
2. Step 2: Convert to fraction form
   116,190.72/160,337.52 = 65,880/x
3. Step 3: Cross multiply
   116,190.72x = 160,337.52 × 65,880
4. Step 4: Simplify right side
   116,190.72x = 10,563,035,817.60
5. Step 5: Solve for x
   x = 10,563,035,817.60/116,190.72
6. Step 6: Final answer
   x = 90,911.18