Finding the Fourth Proportional to 83,215.29, 124,810.62 and 30,612.47

Step by Step Solution

1. Step 1: Write the proportion equation
   83,215.29 : 124,810.62 = 30,612.47 : x
2. Step 2: Convert to fraction form
   83,215.29/124,810.62 = 30,612.47/x
3. Step 3: Cross multiply
   83,215.29x = 124,810.62 × 30,612.47
4. Step 4: Simplify right side
   83,215.29x = 3,820,760,736.38
5. Step 5: Solve for x
   x = 3,820,760,736.38/83,215.29
6. Step 6: Final answer
   x = 45,914.17