Finding the Fourth Proportional to 61,782, 85,268.27 and 39,123.06

Step by Step Solution

1. Step 1: Write the proportion equation
   61,782 : 85,268.27 = 39,123.06 : x
2. Step 2: Convert to fraction form
   61,782/85,268.27 = 39,123.06/x
3. Step 3: Cross multiply
   61,782x = 85,268.27 × 39,123.06
4. Step 4: Simplify right side
   61,782x = 3,335,955,447.69
5. Step 5: Solve for x
   x = 3,335,955,447.69/61,782
6. Step 6: Final answer
   x = 53,995.59