Finding the Fourth Proportional to 116,815.47, 161,205.41 and 63,100.48

Step by Step Solution

1. Step 1: Write the proportion equation
   116,815.47 : 161,205.41 = 63,100.48 : x
2. Step 2: Convert to fraction form
   116,815.47/161,205.41 = 63,100.48/x
3. Step 3: Cross multiply
   116,815.47x = 161,205.41 × 63,100.48
4. Step 4: Simplify right side
   116,815.47x = 10,172,138,749.60
5. Step 5: Solve for x
   x = 10,172,138,749.60/116,815.47
6. Step 6: Final answer
   x = 87,078.70