Finding the Fourth Proportional to 56,282.65, 77,669.45 and 30,789.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,282.65 : 77,669.45 = 30,789.52 : x
2. Step 2: Convert to fraction form
   56,282.65/77,669.45 = 30,789.52/x
3. Step 3: Cross multiply
   56,282.65x = 77,669.45 × 30,789.52
4. Step 4: Simplify right side
   56,282.65x = 2,391,404,851.50
5. Step 5: Solve for x
   x = 2,391,404,851.50/56,282.65
6. Step 6: Final answer
   x = 42,489.20