Finding the Fourth Proportional to 42,068.46, 58,023.98 and 28,615.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,068.46 : 58,023.98 = 28,615.84 : x
2. Step 2: Convert to fraction form
   42,068.46/58,023.98 = 28,615.84/x
3. Step 3: Cross multiply
   42,068.46x = 58,023.98 × 28,615.84
4. Step 4: Simplify right side
   42,068.46x = 1,660,404,927.84
5. Step 5: Solve for x
   x = 1,660,404,927.84/42,068.46
6. Step 6: Final answer
   x = 39,469.12