Finding the Fourth Proportional to 110,018.52, 165,031.02 and 31,139.10

Step by Step Solution

1. Step 1: Write the proportion equation
   110,018.52 : 165,031.02 = 31,139.10 : x
2. Step 2: Convert to fraction form
   110,018.52/165,031.02 = 31,139.10/x
3. Step 3: Cross multiply
   110,018.52x = 165,031.02 × 31,139.10
4. Step 4: Simplify right side
   110,018.52x = 5,138,917,434.88
5. Step 5: Solve for x
   x = 5,138,917,434.88/110,018.52
6. Step 6: Final answer
   x = 46,709.57