Finding the Fourth Proportional to 56,143.33, 77,475.77 and 30,992.29

Step by Step Solution

1. Step 1: Write the proportion equation
   56,143.33 : 77,475.77 = 30,992.29 : x
2. Step 2: Convert to fraction form
   56,143.33/77,475.77 = 30,992.29/x
3. Step 3: Cross multiply
   56,143.33x = 77,475.77 × 30,992.29
4. Step 4: Simplify right side
   56,143.33x = 2,401,151,376.85
5. Step 5: Solve for x
   x = 2,401,151,376.85/56,143.33
6. Step 6: Final answer
   x = 42,768.24