Finding the Fourth Proportional to 108,538.45, 149,778.72 and 60,789.35

Step by Step Solution

1. Step 1: Write the proportion equation
   108,538.45 : 149,778.72 = 60,789.35 : x
2. Step 2: Convert to fraction form
   108,538.45/149,778.72 = 60,789.35/x
3. Step 3: Cross multiply
   108,538.45x = 149,778.72 × 60,789.35
4. Step 4: Simplify right side
   108,538.45x = 9,104,951,407.08
5. Step 5: Solve for x
   x = 9,104,951,407.08/108,538.45
6. Step 6: Final answer
   x = 83,886.88