Finding the Fourth Proportional to 56,920.86, 78,544.82 and 33,042.87

Step by Step Solution

1. Step 1: Write the proportion equation
   56,920.86 : 78,544.82 = 33,042.87 : x
2. Step 2: Convert to fraction form
   56,920.86/78,544.82 = 33,042.87/x
3. Step 3: Cross multiply
   56,920.86x = 78,544.82 × 33,042.87
4. Step 4: Simplify right side
   56,920.86x = 2,595,346,359.04
5. Step 5: Solve for x
   x = 2,595,346,359.04/56,920.86
6. Step 6: Final answer
   x = 45,595.70