Finding the Fourth Proportional to 116,234.28, 160,271.21 and 104,900.15

Step by Step Solution

1. Step 1: Write the proportion equation
   116,234.28 : 160,271.21 = 104,900.15 : x
2. Step 2: Convert to fraction form
   116,234.28/160,271.21 = 104,900.15/x
3. Step 3: Cross multiply
   116,234.28x = 160,271.21 × 104,900.15
4. Step 4: Simplify right side
   116,234.28x = 16,812,472,643.82
5. Step 5: Solve for x
   x = 16,812,472,643.82/116,234.28
6. Step 6: Final answer
   x = 144,642.98