Finding the Fourth Proportional to 58,865.42, 81,198.24 and 54,928.82

Step by Step Solution

1. Step 1: Write the proportion equation
   58,865.42 : 81,198.24 = 54,928.82 : x
2. Step 2: Convert to fraction form
   58,865.42/81,198.24 = 54,928.82/x
3. Step 3: Cross multiply
   58,865.42x = 81,198.24 × 54,928.82
4. Step 4: Simplify right side
   58,865.42x = 4,460,123,509.28
5. Step 5: Solve for x
   x = 4,460,123,509.28/58,865.42
6. Step 6: Final answer
   x = 75,768.14