Finding the Fourth Proportional to 55,611.76, 76,743.84 and 30,460.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,611.76 : 76,743.84 = 30,460.72 : x
2. Step 2: Convert to fraction form
   55,611.76/76,743.84 = 30,460.72/x
3. Step 3: Cross multiply
   55,611.76x = 76,743.84 × 30,460.72
4. Step 4: Simplify right side
   55,611.76x = 2,337,672,621.96
5. Step 5: Solve for x
   x = 2,337,672,621.96/55,611.76
6. Step 6: Final answer
   x = 42,035.58