Finding the Fourth Proportional to 55,174.60, 76,139.83 and 30,976.16

Step by Step Solution

1. Step 1: Write the proportion equation
   55,174.60 : 76,139.83 = 30,976.16 : x
2. Step 2: Convert to fraction form
   55,174.60/76,139.83 = 30,976.16/x
3. Step 3: Cross multiply
   55,174.60x = 76,139.83 × 30,976.16
4. Step 4: Simplify right side
   55,174.60x = 2,358,519,214.47
5. Step 5: Solve for x
   x = 2,358,519,214.47/55,174.60
6. Step 6: Final answer
   x = 42,746.47