Finding the Fourth Proportional to 105,580.83, 158,386.69 and 30,691.25

Step by Step Solution

1. Step 1: Write the proportion equation
   105,580.83 : 158,386.69 = 30,691.25 : x
2. Step 2: Convert to fraction form
   105,580.83/158,386.69 = 30,691.25/x
3. Step 3: Cross multiply
   105,580.83x = 158,386.69 × 30,691.25
4. Step 4: Simplify right side
   105,580.83x = 4,861,084,745.89
5. Step 5: Solve for x
   x = 4,861,084,745.89/105,580.83
6. Step 6: Final answer
   x = 46,041.36