Finding the Fourth Proportional to 55,799.98, 83,663.31 and 31,785.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,799.98 : 83,663.31 = 31,785.10 : x
2. Step 2: Convert to fraction form
   55,799.98/83,663.31 = 31,785.10/x
3. Step 3: Cross multiply
   55,799.98x = 83,663.31 × 31,785.10
4. Step 4: Simplify right side
   55,799.98x = 2,659,246,674.68
5. Step 5: Solve for x
   x = 2,659,246,674.68/55,799.98
6. Step 6: Final answer
   x = 47,656.77