Finding the Fourth Proportional to 116,880, 161,308.38 and 65,902.47

Step by Step Solution

1. Step 1: Write the proportion equation
   116,880 : 161,308.38 = 65,902.47 : x
2. Step 2: Convert to fraction form
   116,880/161,308.38 = 65,902.47/x
3. Step 3: Cross multiply
   116,880x = 161,308.38 × 65,902.47
4. Step 4: Simplify right side
   116,880x = 10,630,620,673.70
5. Step 5: Solve for x
   x = 10,630,620,673.70/116,880
6. Step 6: Final answer
   x = 90,953.29