Finding the Fourth Proportional to 51,191.63, 70,650.18 and 28,532.69

Step by Step Solution

1. Step 1: Write the proportion equation
   51,191.63 : 70,650.18 = 28,532.69 : x
2. Step 2: Convert to fraction form
   51,191.63/70,650.18 = 28,532.69/x
3. Step 3: Cross multiply
   51,191.63x = 70,650.18 × 28,532.69
4. Step 4: Simplify right side
   51,191.63x = 2,015,839,684.38
5. Step 5: Solve for x
   x = 2,015,839,684.38/51,191.63
6. Step 6: Final answer
   x = 39,378.31