Finding the Fourth Proportional to 55,668.48, 76,824.72 and 30,518.88

Step by Step Solution

1. Step 1: Write the proportion equation
   55,668.48 : 76,824.72 = 30,518.88 : x
2. Step 2: Convert to fraction form
   55,668.48/76,824.72 = 30,518.88/x
3. Step 3: Cross multiply
   55,668.48x = 76,824.72 × 30,518.88
4. Step 4: Simplify right side
   55,668.48x = 2,344,604,410.71
5. Step 5: Solve for x
   x = 2,344,604,410.71/55,668.48
6. Step 6: Final answer
   x = 42,117.27