Finding the Fourth Proportional to 90,837.56, 136,221.78 and 41,555

Step by Step Solution

1. Step 1: Write the proportion equation
   90,837.56 : 136,221.78 = 41,555 : x
2. Step 2: Convert to fraction form
   90,837.56/136,221.78 = 41,555/x
3. Step 3: Cross multiply
   90,837.56x = 136,221.78 × 41,555
4. Step 4: Simplify right side
   90,837.56x = 5,660,696,067.90
5. Step 5: Solve for x
   x = 5,660,696,067.90/90,837.56
6. Step 6: Final answer
   x = 62,316.69