Finding the Fourth Proportional to 55,491, 76,579.47 and 30,342.12

Step by Step Solution

1. Step 1: Write the proportion equation
   55,491 : 76,579.47 = 30,342.12 : x
2. Step 2: Convert to fraction form
   55,491/76,579.47 = 30,342.12/x
3. Step 3: Cross multiply
   55,491x = 76,579.47 × 30,342.12
4. Step 4: Simplify right side
   55,491x = 2,323,583,468.28
5. Step 5: Solve for x
   x = 2,323,583,468.28/55,491
6. Step 6: Final answer
   x = 41,873.16