Finding the Fourth Proportional to 55,739, 76,919.82 and 30,588.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,739 : 76,919.82 = 30,588.50 : x
2. Step 2: Convert to fraction form
   55,739/76,919.82 = 30,588.50/x
3. Step 3: Cross multiply
   55,739x = 76,919.82 × 30,588.50
4. Step 4: Simplify right side
   55,739x = 2,352,861,914.07
5. Step 5: Solve for x
   x = 2,352,861,914.07/55,739
6. Step 6: Final answer
   x = 42,212.13