Finding the Fourth Proportional to 108,738.52, 163,105.60 and 61,891

Step by Step Solution

1. Step 1: Write the proportion equation
   108,738.52 : 163,105.60 = 61,891 : x
2. Step 2: Convert to fraction form
   108,738.52/163,105.60 = 61,891/x
3. Step 3: Cross multiply
   108,738.52x = 163,105.60 × 61,891
4. Step 4: Simplify right side
   108,738.52x = 10,094,768,689.60
5. Step 5: Solve for x
   x = 10,094,768,689.60/108,738.52
6. Step 6: Final answer
   x = 92,835.26