Finding the Fourth Proportional to 42,532.83, 58,711.77 and 28,380.51

Step by Step Solution

1. Step 1: Write the proportion equation
   42,532.83 : 58,711.77 = 28,380.51 : x
2. Step 2: Convert to fraction form
   42,532.83/58,711.77 = 28,380.51/x
3. Step 3: Cross multiply
   42,532.83x = 58,711.77 × 28,380.51
4. Step 4: Simplify right side
   42,532.83x = 1,666,269,975.60
5. Step 5: Solve for x
   x = 1,666,269,975.60/42,532.83
6. Step 6: Final answer
   x = 39,176.09