Finding the Fourth Proportional to 109,931.10, 164,880.45 and 31,053.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,931.10 : 164,880.45 = 31,053.30 : x
2. Step 2: Convert to fraction form
   109,931.10/164,880.45 = 31,053.30/x
3. Step 3: Cross multiply
   109,931.10x = 164,880.45 × 31,053.30
4. Step 4: Simplify right side
   109,931.10x = 5,120,082,077.99
5. Step 5: Solve for x
   x = 5,120,082,077.99/109,931.10
6. Step 6: Final answer
   x = 46,575.37