Finding the Fourth Proportional to 116,098.72, 160,178.16 and 65,104

Step by Step Solution

1. Step 1: Write the proportion equation
   116,098.72 : 160,178.16 = 65,104 : x
2. Step 2: Convert to fraction form
   116,098.72/160,178.16 = 65,104/x
3. Step 3: Cross multiply
   116,098.72x = 160,178.16 × 65,104
4. Step 4: Simplify right side
   116,098.72x = 10,428,238,928.64
5. Step 5: Solve for x
   x = 10,428,238,928.64/116,098.72
6. Step 6: Final answer
   x = 89,822.17