Finding the Fourth Proportional to 56,155.86, 77,494.49 and 30,662.15

Step by Step Solution

1. Step 1: Write the proportion equation
   56,155.86 : 77,494.49 = 30,662.15 : x
2. Step 2: Convert to fraction form
   56,155.86/77,494.49 = 30,662.15/x
3. Step 3: Cross multiply
   56,155.86x = 77,494.49 × 30,662.15
4. Step 4: Simplify right side
   56,155.86x = 2,376,147,365.74
5. Step 5: Solve for x
   x = 2,376,147,365.74/56,155.86
6. Step 6: Final answer
   x = 42,313.44