Finding the Fourth Proportional to 42,849.47, 59,152.47 and 28,533.13

Step by Step Solution

1. Step 1: Write the proportion equation
   42,849.47 : 59,152.47 = 28,533.13 : x
2. Step 2: Convert to fraction form
   42,849.47/59,152.47 = 28,533.13/x
3. Step 3: Cross multiply
   42,849.47x = 59,152.47 × 28,533.13
4. Step 4: Simplify right side
   42,849.47x = 1,687,804,861.45
5. Step 5: Solve for x
   x = 1,687,804,861.45/42,849.47
6. Step 6: Final answer
   x = 39,389.16