Finding the Fourth Proportional to 55,665.32, 76,813.92 and 31,788.76

Step by Step Solution

1. Step 1: Write the proportion equation
   55,665.32 : 76,813.92 = 31,788.76 : x
2. Step 2: Convert to fraction form
   55,665.32/76,813.92 = 31,788.76/x
3. Step 3: Cross multiply
   55,665.32x = 76,813.92 × 31,788.76
4. Step 4: Simplify right side
   55,665.32x = 2,441,819,267.54
5. Step 5: Solve for x
   x = 2,441,819,267.54/55,665.32
6. Step 6: Final answer
   x = 43,866.08