Finding the Fourth Proportional to 42,802.65, 58,945.19 and 30,847.05

Step by Step Solution

1. Step 1: Write the proportion equation
   42,802.65 : 58,945.19 = 30,847.05 : x
2. Step 2: Convert to fraction form
   42,802.65/58,945.19 = 30,847.05/x
3. Step 3: Cross multiply
   42,802.65x = 58,945.19 × 30,847.05
4. Step 4: Simplify right side
   42,802.65x = 1,818,285,068.95
5. Step 5: Solve for x
   x = 1,818,285,068.95/42,802.65
6. Step 6: Final answer
   x = 42,480.67