Finding the Fourth Proportional to 83,109.83, 124,578.50 and 38,700.05

Step by Step Solution

1. Step 1: Write the proportion equation
   83,109.83 : 124,578.50 = 38,700.05 : x
2. Step 2: Convert to fraction form
   83,109.83/124,578.50 = 38,700.05/x
3. Step 3: Cross multiply
   83,109.83x = 124,578.50 × 38,700.05
4. Step 4: Simplify right side
   83,109.83x = 4,821,193,362.53
5. Step 5: Solve for x
   x = 4,821,193,362.53/83,109.83
6. Step 6: Final answer
   x = 58,009.91