Finding the Fourth Proportional to 116,951.04, 161,395.20 and 66,654.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,951.04 : 161,395.20 = 66,654.72 : x
2. Step 2: Convert to fraction form
   116,951.04/161,395.20 = 66,654.72/x
3. Step 3: Cross multiply
   116,951.04x = 161,395.20 × 66,654.72
4. Step 4: Simplify right side
   116,951.04x = 10,757,751,865.34
5. Step 5: Solve for x
   x = 10,757,751,865.34/116,951.04
6. Step 6: Final answer
   x = 91,985.09