Finding the Fourth Proportional to 42,427.42, 58,510.71 and 28,835.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,427.42 : 58,510.71 = 28,835.82 : x
2. Step 2: Convert to fraction form
   42,427.42/58,510.71 = 28,835.82/x
3. Step 3: Cross multiply
   42,427.42x = 58,510.71 × 28,835.82
4. Step 4: Simplify right side
   42,427.42x = 1,687,204,301.63
5. Step 5: Solve for x
   x = 1,687,204,301.63/42,427.42
6. Step 6: Final answer
   x = 39,766.84