Finding the Fourth Proportional to 123,714.72, 170,728.30 and 67,126.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,714.72 : 170,728.30 = 67,126.10 : x
2. Step 2: Convert to fraction form
   123,714.72/170,728.30 = 67,126.10/x
3. Step 3: Cross multiply
   123,714.72x = 170,728.30 × 67,126.10
4. Step 4: Simplify right side
   123,714.72x = 11,460,324,938.63
5. Step 5: Solve for x
   x = 11,460,324,938.63/123,714.72
6. Step 6: Final answer
   x = 92,635.10