Finding the Fourth Proportional to 116,865.47, 161,274.28 and 63,150.47

Step by Step Solution

1. Step 1: Write the proportion equation
   116,865.47 : 161,274.28 = 63,150.47 : x
2. Step 2: Convert to fraction form
   116,865.47/161,274.28 = 63,150.47/x
3. Step 3: Cross multiply
   116,865.47x = 161,274.28 × 63,150.47
4. Step 4: Simplify right side
   116,865.47x = 10,184,546,580.91
5. Step 5: Solve for x
   x = 10,184,546,580.91/116,865.47
6. Step 6: Final answer
   x = 87,147.61