Finding the Fourth Proportional to 83,215.35, 124,810.72 and 30,612.53

Step by Step Solution

1. Step 1: Write the proportion equation
   83,215.35 : 124,810.72 = 30,612.53 : x
2. Step 2: Convert to fraction form
   83,215.35/124,810.72 = 30,612.53/x
3. Step 3: Cross multiply
   83,215.35x = 124,810.72 × 30,612.53
4. Step 4: Simplify right side
   83,215.35x = 3,820,771,910.32
5. Step 5: Solve for x
   x = 3,820,771,910.32/83,215.35
6. Step 6: Final answer
   x = 45,914.27