Finding the Fourth Proportional to 116,864.59, 161,273.12 and 63,149.61

Step by Step Solution

1. Step 1: Write the proportion equation
   116,864.59 : 161,273.12 = 63,149.61 : x
2. Step 2: Convert to fraction form
   116,864.59/161,273.12 = 63,149.61/x
3. Step 3: Cross multiply
   116,864.59x = 161,273.12 × 63,149.61
4. Step 4: Simplify right side
   116,864.59x = 10,184,333,825.12
5. Step 5: Solve for x
   x = 10,184,333,825.12/116,864.59
6. Step 6: Final answer
   x = 87,146.45