Finding the Fourth Proportional to 55,590.52, 76,728.42 and 34,357

Step by Step Solution

1. Step 1: Write the proportion equation
   55,590.52 : 76,728.42 = 34,357 : x
2. Step 2: Convert to fraction form
   55,590.52/76,728.42 = 34,357/x
3. Step 3: Cross multiply
   55,590.52x = 76,728.42 × 34,357
4. Step 4: Simplify right side
   55,590.52x = 2,636,158,325.94
5. Step 5: Solve for x
   x = 2,636,158,325.94/55,590.52
6. Step 6: Final answer
   x = 47,421.00