Finding the Fourth Proportional to 109,872.10, 164,814.58 and 42,404.49

Step by Step Solution

1. Step 1: Write the proportion equation
   109,872.10 : 164,814.58 = 42,404.49 : x
2. Step 2: Convert to fraction form
   109,872.10/164,814.58 = 42,404.49/x
3. Step 3: Cross multiply
   109,872.10x = 164,814.58 × 42,404.49
4. Step 4: Simplify right side
   109,872.10x = 6,988,878,209.46
5. Step 5: Solve for x
   x = 6,988,878,209.46/109,872.10
6. Step 6: Final answer
   x = 63,609.22