Finding the Fourth Proportional to 56,033.72, 77,326.52 and 30,540.12

Step by Step Solution

1. Step 1: Write the proportion equation
   56,033.72 : 77,326.52 = 30,540.12 : x
2. Step 2: Convert to fraction form
   56,033.72/77,326.52 = 30,540.12/x
3. Step 3: Cross multiply
   56,033.72x = 77,326.52 × 30,540.12
4. Step 4: Simplify right side
   56,033.72x = 2,361,561,199.98
5. Step 5: Solve for x
   x = 2,361,561,199.98/56,033.72
6. Step 6: Final answer
   x = 42,145.36