Finding the Fourth Proportional to 70,142.30, 96,796.89 and 38,311.20

Step by Step Solution

1. Step 1: Write the proportion equation
   70,142.30 : 96,796.89 = 38,311.20 : x
2. Step 2: Convert to fraction form
   70,142.30/96,796.89 = 38,311.20/x
3. Step 3: Cross multiply
   70,142.30x = 96,796.89 × 38,311.20
4. Step 4: Simplify right side
   70,142.30x = 3,708,405,012.17
5. Step 5: Solve for x
   x = 3,708,405,012.17/70,142.30
6. Step 6: Final answer
   x = 52,869.74