Finding the Fourth Proportional to 55,644.51, 76,789.04 and 30,493.47

Step by Step Solution

1. Step 1: Write the proportion equation
   55,644.51 : 76,789.04 = 30,493.47 : x
2. Step 2: Convert to fraction form
   55,644.51/76,789.04 = 30,493.47/x
3. Step 3: Cross multiply
   55,644.51x = 76,789.04 × 30,493.47
4. Step 4: Simplify right side
   55,644.51x = 2,341,564,135.10
5. Step 5: Solve for x
   x = 2,341,564,135.10/55,644.51
6. Step 6: Final answer
   x = 42,080.78