Finding the Fourth Proportional to 105,580.64, 158,386.41 and 30,691.06

Step by Step Solution

1. Step 1: Write the proportion equation
   105,580.64 : 158,386.41 = 30,691.06 : x
2. Step 2: Convert to fraction form
   105,580.64/158,386.41 = 30,691.06/x
3. Step 3: Cross multiply
   105,580.64x = 158,386.41 × 30,691.06
4. Step 4: Simplify right side
   105,580.64x = 4,861,046,713.50
5. Step 5: Solve for x
   x = 4,861,046,713.50/105,580.64
6. Step 6: Final answer
   x = 46,041.08