Finding the Fourth Proportional to 28,496.01, 42,737.94 and 20,152.47

Step by Step Solution

1. Step 1: Write the proportion equation
   28,496.01 : 42,737.94 = 20,152.47 : x
2. Step 2: Convert to fraction form
   28,496.01/42,737.94 = 20,152.47/x
3. Step 3: Cross multiply
   28,496.01x = 42,737.94 × 20,152.47
4. Step 4: Simplify right side
   28,496.01x = 861,275,053.71
5. Step 5: Solve for x
   x = 861,275,053.71/28,496.01
6. Step 6: Final answer
   x = 30,224.41