Finding the Fourth Proportional to 42,162.13, 58,116.07 and 28,545.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42,162.13 : 58,116.07 = 28,545.83 : x
2. Step 2: Convert to fraction form
   42,162.13/58,116.07 = 28,545.83/x
3. Step 3: Cross multiply
   42,162.13x = 58,116.07 × 28,545.83
4. Step 4: Simplify right side
   42,162.13x = 1,658,971,021.18
5. Step 5: Solve for x
   x = 1,658,971,021.18/42,162.13
6. Step 6: Final answer
   x = 39,347.42