Finding the Fourth Proportional to 55,281, 76,287.71 and 30,130.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,281 : 76,287.71 = 30,130.50 : x
2. Step 2: Convert to fraction form
   55,281/76,287.71 = 30,130.50/x
3. Step 3: Cross multiply
   55,281x = 76,287.71 × 30,130.50
4. Step 4: Simplify right side
   55,281x = 2,298,586,846.16
5. Step 5: Solve for x
   x = 2,298,586,846.16/55,281
6. Step 6: Final answer
   x = 41,580.05