Finding the Fourth Proportional to 28,469.48, 42,710.22 and 10,700.28

Step by Step Solution

1. Step 1: Write the proportion equation
   28,469.48 : 42,710.22 = 10,700.28 : x
2. Step 2: Convert to fraction form
   28,469.48/42,710.22 = 10,700.28/x
3. Step 3: Cross multiply
   28,469.48x = 42,710.22 × 10,700.28
4. Step 4: Simplify right side
   28,469.48x = 457,011,312.86
5. Step 5: Solve for x
   x = 457,011,312.86/28,469.48
6. Step 6: Final answer
   x = 16,052.68