Finding the Fourth Proportional to 55,579.56, 76,697.52 and 30,429

Step by Step Solution

1. Step 1: Write the proportion equation
   55,579.56 : 76,697.52 = 30,429 : x
2. Step 2: Convert to fraction form
   55,579.56/76,697.52 = 30,429/x
3. Step 3: Cross multiply
   55,579.56x = 76,697.52 × 30,429
4. Step 4: Simplify right side
   55,579.56x = 2,333,828,836.08
5. Step 5: Solve for x
   x = 2,333,828,836.08/55,579.56
6. Step 6: Final answer
   x = 41,990.78