Finding the Fourth Proportional to 116,817.96, 161,190.50 and 65,828.06

Step by Step Solution

1. Step 1: Write the proportion equation
   116,817.96 : 161,190.50 = 65,828.06 : x
2. Step 2: Convert to fraction form
   116,817.96/161,190.50 = 65,828.06/x
3. Step 3: Cross multiply
   116,817.96x = 161,190.50 × 65,828.06
4. Step 4: Simplify right side
   116,817.96x = 10,610,856,770.34
5. Step 5: Solve for x
   x = 10,610,856,770.34/116,817.96
6. Step 6: Final answer
   x = 90,832.41