Finding the Fourth Proportional to 116,823.18, 161,215.83 and 66,522.18

Step by Step Solution

1. Step 1: Write the proportion equation
   116,823.18 : 161,215.83 = 66,522.18 : x
2. Step 2: Convert to fraction form
   116,823.18/161,215.83 = 66,522.18/x
3. Step 3: Cross multiply
   116,823.18x = 161,215.83 × 66,522.18
4. Step 4: Simplify right side
   116,823.18x = 10,724,428,462.11
5. Step 5: Solve for x
   x = 10,724,428,462.11/116,823.18
6. Step 6: Final answer
   x = 91,800.52