Finding the Fourth Proportional to 109,890.10, 164,862.15 and 31,003.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,890.10 : 164,862.15 = 31,003.30 : x
2. Step 2: Convert to fraction form
   109,890.10/164,862.15 = 31,003.30/x
3. Step 3: Cross multiply
   109,890.10x = 164,862.15 × 31,003.30
4. Step 4: Simplify right side
   109,890.10x = 5,111,270,695.10
5. Step 5: Solve for x
   x = 5,111,270,695.10/109,890.10
6. Step 6: Final answer
   x = 46,512.57