Finding the Fourth Proportional to 123,749.10, 185,526.45 and 68,345.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,749.10 : 185,526.45 = 68,345.10 : x
2. Step 2: Convert to fraction form
   123,749.10/185,526.45 = 68,345.10/x
3. Step 3: Cross multiply
   123,749.10x = 185,526.45 × 68,345.10
4. Step 4: Simplify right side
   123,749.10x = 12,679,823,777.90
5. Step 5: Solve for x
   x = 12,679,823,777.90/123,749.10
6. Step 6: Final answer
   x = 102,463.97