Finding the Fourth Proportional to 116,911.35, 161,337.15 and 63,196.47

Step by Step Solution

1. Step 1: Write the proportion equation
   116,911.35 : 161,337.15 = 63,196.47 : x
2. Step 2: Convert to fraction form
   116,911.35/161,337.15 = 63,196.47/x
3. Step 3: Cross multiply
   116,911.35x = 161,337.15 × 63,196.47
4. Step 4: Simplify right side
   116,911.35x = 10,195,938,359.86
5. Step 5: Solve for x
   x = 10,195,938,359.86/116,911.35
6. Step 6: Final answer
   x = 87,210.85