Finding the Fourth Proportional to 51,072.72, 76,590.12 and 17,784.24

Step by Step Solution

1. Step 1: Write the proportion equation
   51,072.72 : 76,590.12 = 17,784.24 : x
2. Step 2: Convert to fraction form
   51,072.72/76,590.12 = 17,784.24/x
3. Step 3: Cross multiply
   51,072.72x = 76,590.12 × 17,784.24
4. Step 4: Simplify right side
   51,072.72x = 1,362,097,075.71
5. Step 5: Solve for x
   x = 1,362,097,075.71/51,072.72
6. Step 6: Final answer
   x = 26,669.76