Finding the Fourth Proportional to 56,774.01, 78,288.75 and 42,411.33

Step by Step Solution

1. Step 1: Write the proportion equation
   56,774.01 : 78,288.75 = 42,411.33 : x
2. Step 2: Convert to fraction form
   56,774.01/78,288.75 = 42,411.33/x
3. Step 3: Cross multiply
   56,774.01x = 78,288.75 × 42,411.33
4. Step 4: Simplify right side
   56,774.01x = 3,320,330,011.54
5. Step 5: Solve for x
   x = 3,320,330,011.54/56,774.01
6. Step 6: Final answer
   x = 58,483.27