Finding the Fourth Proportional to 58,777.54, 81,168.33 and 40,921.36

Step by Step Solution

1. Step 1: Write the proportion equation
   58,777.54 : 81,168.33 = 40,921.36 : x
2. Step 2: Convert to fraction form
   58,777.54/81,168.33 = 40,921.36/x
3. Step 3: Cross multiply
   58,777.54x = 81,168.33 × 40,921.36
4. Step 4: Simplify right side
   58,777.54x = 3,321,518,046.69
5. Step 5: Solve for x
   x = 3,321,518,046.69/58,777.54
6. Step 6: Final answer
   x = 56,509.99