Finding the Fourth Proportional to 72,504.05, 100,058.90 and 42,284.57

Step by Step Solution

1. Step 1: Write the proportion equation
   72,504.05 : 100,058.90 = 42,284.57 : x
2. Step 2: Convert to fraction form
   72,504.05/100,058.90 = 42,284.57/x
3. Step 3: Cross multiply
   72,504.05x = 100,058.90 × 42,284.57
4. Step 4: Simplify right side
   72,504.05x = 4,230,946,849.46
5. Step 5: Solve for x
   x = 4,230,946,849.46/72,504.05
6. Step 6: Final answer
   x = 58,354.63