Finding the Fourth Proportional to 49,966.10, 68,921.51 and 38,003.21

Step by Step Solution

1. Step 1: Write the proportion equation
   49,966.10 : 68,921.51 = 38,003.21 : x
2. Step 2: Convert to fraction form
   49,966.10/68,921.51 = 38,003.21/x
3. Step 3: Cross multiply
   49,966.10x = 68,921.51 × 38,003.21
4. Step 4: Simplify right side
   49,966.10x = 2,619,238,083.42
5. Step 5: Solve for x
   x = 2,619,238,083.42/49,966.10
6. Step 6: Final answer
   x = 52,420.31