Finding the Fourth Proportional to 113,128.35, 169,691.91 and 27,738.15

Step by Step Solution

1. Step 1: Write the proportion equation
   113,128.35 : 169,691.91 = 27,738.15 : x
2. Step 2: Convert to fraction form
   113,128.35/169,691.91 = 27,738.15/x
3. Step 3: Cross multiply
   113,128.35x = 169,691.91 × 27,738.15
4. Step 4: Simplify right side
   113,128.35x = 4,706,939,653.37
5. Step 5: Solve for x
   x = 4,706,939,653.37/113,128.35
6. Step 6: Final answer
   x = 41,607.07