Finding the Fourth Proportional to 109,486.10, 164,107.65 and 42,904.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,486.10 : 164,107.65 = 42,904.10 : x
2. Step 2: Convert to fraction form
   109,486.10/164,107.65 = 42,904.10/x
3. Step 3: Cross multiply
   109,486.10x = 164,107.65 × 42,904.10
4. Step 4: Simplify right side
   109,486.10x = 7,040,891,026.37
5. Step 5: Solve for x
   x = 7,040,891,026.37/109,486.10
6. Step 6: Final answer
   x = 64,308.54