Finding the Fourth Proportional to 109,506.89, 164,278.08 and 42,910.91

Step by Step Solution

1. Step 1: Write the proportion equation
   109,506.89 : 164,278.08 = 42,910.91 : x
2. Step 2: Convert to fraction form
   109,506.89/164,278.08 = 42,910.91/x
3. Step 3: Cross multiply
   109,506.89x = 164,278.08 × 42,910.91
4. Step 4: Simplify right side
   109,506.89x = 7,049,321,905.85
5. Step 5: Solve for x
   x = 7,049,321,905.85/109,506.89
6. Step 6: Final answer
   x = 64,373.32