Finding the Fourth Proportional to 116,886.26, 161,294.94 and 65,900.81

Step by Step Solution

1. Step 1: Write the proportion equation
   116,886.26 : 161,294.94 = 65,900.81 : x
2. Step 2: Convert to fraction form
   116,886.26/161,294.94 = 65,900.81/x
3. Step 3: Cross multiply
   116,886.26x = 161,294.94 × 65,900.81
4. Step 4: Simplify right side
   116,886.26x = 10,629,466,388.43
5. Step 5: Solve for x
   x = 10,629,466,388.43/116,886.26
6. Step 6: Final answer
   x = 90,938.55