Finding the Fourth Proportional to 109,899.10, 164,832.45 and 31,021.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,899.10 : 164,832.45 = 31,021.30 : x
2. Step 2: Convert to fraction form
   109,899.10/164,832.45 = 31,021.30/x
3. Step 3: Cross multiply
   109,899.10x = 164,832.45 × 31,021.30
4. Step 4: Simplify right side
   109,899.10x = 5,113,316,881.19
5. Step 5: Solve for x
   x = 5,113,316,881.19/109,899.10
6. Step 6: Final answer
   x = 46,527.38