Finding the Fourth Proportional to 55,179.59, 76,142.56 and 30,975.01

Step by Step Solution

1. Step 1: Write the proportion equation
   55,179.59 : 76,142.56 = 30,975.01 : x
2. Step 2: Convert to fraction form
   55,179.59/76,142.56 = 30,975.01/x
3. Step 3: Cross multiply
   55,179.59x = 76,142.56 × 30,975.01
4. Step 4: Simplify right side
   55,179.59x = 2,358,516,557.43
5. Step 5: Solve for x
   x = 2,358,516,557.43/55,179.59
6. Step 6: Final answer
   x = 42,742.55