Finding the Fourth Proportional to 55,665.66, 76,818.50 and 30,515.34

Step by Step Solution

1. Step 1: Write the proportion equation
   55,665.66 : 76,818.50 = 30,515.34 : x
2. Step 2: Convert to fraction form
   55,665.66/76,818.50 = 30,515.34/x
3. Step 3: Cross multiply
   55,665.66x = 76,818.50 × 30,515.34
4. Step 4: Simplify right side
   55,665.66x = 2,344,142,645.79
5. Step 5: Solve for x
   x = 2,344,142,645.79/55,665.66
6. Step 6: Final answer
   x = 42,111.11