Finding the Fourth Proportional to 109,476.40, 164,219.46 and 42,910.60

Step by Step Solution

1. Step 1: Write the proportion equation
   109,476.40 : 164,219.46 = 42,910.60 : x
2. Step 2: Convert to fraction form
   109,476.40/164,219.46 = 42,910.60/x
3. Step 3: Cross multiply
   109,476.40x = 164,219.46 × 42,910.60
4. Step 4: Simplify right side
   109,476.40x = 7,046,755,560.28
5. Step 5: Solve for x
   x = 7,046,755,560.28/109,476.40
6. Step 6: Final answer
   x = 64,367.80