Finding the Fourth Proportional to 83,215.10, 124,810.34 and 30,612.29

Step by Step Solution

1. Step 1: Write the proportion equation
   83,215.10 : 124,810.34 = 30,612.29 : x
2. Step 2: Convert to fraction form
   83,215.10/124,810.34 = 30,612.29/x
3. Step 3: Cross multiply
   83,215.10x = 124,810.34 × 30,612.29
4. Step 4: Simplify right side
   83,215.10x = 3,820,729,775.56
5. Step 5: Solve for x
   x = 3,820,729,775.56/83,215.10
6. Step 6: Final answer
   x = 45,913.90