Finding the Fourth Proportional to 56,221.23, 77,585.12 and 30,727.59

Step by Step Solution

1. Step 1: Write the proportion equation
   56,221.23 : 77,585.12 = 30,727.59 : x
2. Step 2: Convert to fraction form
   56,221.23/77,585.12 = 30,727.59/x
3. Step 3: Cross multiply
   56,221.23x = 77,585.12 × 30,727.59
4. Step 4: Simplify right side
   56,221.23x = 2,384,003,603.82
5. Step 5: Solve for x
   x = 2,384,003,603.82/56,221.23
6. Step 6: Final answer
   x = 42,403.97