Finding the Fourth Proportional to 109,891.10, 164,820.45 and 31,013.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,891.10 : 164,820.45 = 31,013.30 : x
2. Step 2: Convert to fraction form
   109,891.10/164,820.45 = 31,013.30/x
3. Step 3: Cross multiply
   109,891.10x = 164,820.45 × 31,013.30
4. Step 4: Simplify right side
   109,891.10x = 5,111,626,061.99
5. Step 5: Solve for x
   x = 5,111,626,061.99/109,891.10
6. Step 6: Final answer
   x = 46,515.38