Finding the Fourth Proportional to 70,833.42, 106,233.12 and 20,900.03

Step by Step Solution

1. Step 1: Write the proportion equation
   70,833.42 : 106,233.12 = 20,900.03 : x
2. Step 2: Convert to fraction form
   70,833.42/106,233.12 = 20,900.03/x
3. Step 3: Cross multiply
   70,833.42x = 106,233.12 × 20,900.03
4. Step 4: Simplify right side
   70,833.42x = 2,220,274,863.83
5. Step 5: Solve for x
   x = 2,220,274,863.83/70,833.42
6. Step 6: Final answer
   x = 31,345.02