Finding the Fourth Proportional to 116,725.34, 161,081.63 and 66,424.34

Step by Step Solution

1. Step 1: Write the proportion equation
   116,725.34 : 161,081.63 = 66,424.34 : x
2. Step 2: Convert to fraction form
   116,725.34/161,081.63 = 66,424.34/x
3. Step 3: Cross multiply
   116,725.34x = 161,081.63 × 66,424.34
4. Step 4: Simplify right side
   116,725.34x = 10,699,741,278.55
5. Step 5: Solve for x
   x = 10,699,741,278.55/116,725.34
6. Step 6: Final answer
   x = 91,665.97