Finding the Fourth Proportional to 51,112.63, 70,535.42 and 28,451.13

Step by Step Solution

1. Step 1: Write the proportion equation
   51,112.63 : 70,535.42 = 28,451.13 : x
2. Step 2: Convert to fraction form
   51,112.63/70,535.42 = 28,451.13/x
3. Step 3: Cross multiply
   51,112.63x = 70,535.42 × 28,451.13
4. Step 4: Simplify right side
   51,112.63x = 2,006,812,404.02
5. Step 5: Solve for x
   x = 2,006,812,404.02/51,112.63
6. Step 6: Final answer
   x = 39,262.55