Finding the Fourth Proportional to 55,279.02, 76,286.16 and 30,128.52

Step by Step Solution

1. Step 1: Write the proportion equation
   55,279.02 : 76,286.16 = 30,128.52 : x
2. Step 2: Convert to fraction form
   55,279.02/76,286.16 = 30,128.52/x
3. Step 3: Cross multiply
   55,279.02x = 76,286.16 × 30,128.52
4. Step 4: Simplify right side
   55,279.02x = 2,298,389,097.28
5. Step 5: Solve for x
   x = 2,298,389,097.28/55,279.02
6. Step 6: Final answer
   x = 41,577.96