Finding the Fourth Proportional to 56,089.94, 77,404.53 and 30,940.34

Step by Step Solution

1. Step 1: Write the proportion equation
   56,089.94 : 77,404.53 = 30,940.34 : x
2. Step 2: Convert to fraction form
   56,089.94/77,404.53 = 30,940.34/x
3. Step 3: Cross multiply
   56,089.94x = 77,404.53 × 30,940.34
4. Step 4: Simplify right side
   56,089.94x = 2,394,922,475.74
5. Step 5: Solve for x
   x = 2,394,922,475.74/56,089.94
6. Step 6: Final answer
   x = 42,697.90