Finding the Fourth Proportional to 56,590.72, 84,907.94 and 17,148.16

Step by Step Solution

1. Step 1: Write the proportion equation
   56,590.72 : 84,907.94 = 17,148.16 : x
2. Step 2: Convert to fraction form
   56,590.72/84,907.94 = 17,148.16/x
3. Step 3: Cross multiply
   56,590.72x = 84,907.94 × 17,148.16
4. Step 4: Simplify right side
   56,590.72x = 1,456,014,940.39
5. Step 5: Solve for x
   x = 1,456,014,940.39/56,590.72
6. Step 6: Final answer
   x = 25,728.86