Finding the Fourth Proportional to 55,783, 76,888.74 and 38,811.88

Step by Step Solution

1. Step 1: Write the proportion equation
   55,783 : 76,888.74 = 38,811.88 : x
2. Step 2: Convert to fraction form
   55,783/76,888.74 = 38,811.88/x
3. Step 3: Cross multiply
   55,783x = 76,888.74 × 38,811.88
4. Step 4: Simplify right side
   55,783x = 2,984,196,550.23
5. Step 5: Solve for x
   x = 2,984,196,550.23/55,783
6. Step 6: Final answer
   x = 53,496.52