Finding the Fourth Proportional to 109,776.66, 164,665.59 and 30,891.57

Step by Step Solution

1. Step 1: Write the proportion equation
   109,776.66 : 164,665.59 = 30,891.57 : x
2. Step 2: Convert to fraction form
   109,776.66/164,665.59 = 30,891.57/x
3. Step 3: Cross multiply
   109,776.66x = 164,665.59 × 30,891.57
4. Step 4: Simplify right side
   109,776.66x = 5,086,778,600.08
5. Step 5: Solve for x
   x = 5,086,778,600.08/109,776.66
6. Step 6: Final answer
   x = 46,337.52