Finding the Fourth Proportional to 83,878.27, 115,733.00 and 61,229.59

Step by Step Solution

1. Step 1: Write the proportion equation
   83,878.27 : 115,733.00 = 61,229.59 : x
2. Step 2: Convert to fraction form
   83,878.27/115,733.00 = 61,229.59/x
3. Step 3: Cross multiply
   83,878.27x = 115,733.00 × 61,229.59
4. Step 4: Simplify right side
   83,878.27x = 7,086,284,003.21
5. Step 5: Solve for x
   x = 7,086,284,003.21/83,878.27
6. Step 6: Final answer
   x = 84,482.96