Finding the Fourth Proportional to 51,333.51, 70,839.50 and 28,672.82

Step by Step Solution

1. Step 1: Write the proportion equation
   51,333.51 : 70,839.50 = 28,672.82 : x
2. Step 2: Convert to fraction form
   51,333.51/70,839.50 = 28,672.82/x
3. Step 3: Cross multiply
   51,333.51x = 70,839.50 × 28,672.82
4. Step 4: Simplify right side
   51,333.51x = 2,031,168,000.48
5. Step 5: Solve for x
   x = 2,031,168,000.48/51,333.51
6. Step 6: Final answer
   x = 39,568.07