Finding the Fourth Proportional to 52,742.14, 72,784.27 and 28,868.70

Step by Step Solution

1. Step 1: Write the proportion equation
   52,742.14 : 72,784.27 = 28,868.70 : x
2. Step 2: Convert to fraction form
   52,742.14/72,784.27 = 28,868.70/x
3. Step 3: Cross multiply
   52,742.14x = 72,784.27 × 28,868.70
4. Step 4: Simplify right side
   52,742.14x = 2,101,187,564.38
5. Step 5: Solve for x
   x = 2,101,187,564.38/52,742.14
6. Step 6: Final answer
   x = 39,838.88