Finding the Fourth Proportional to 55,966.32, 77,233.60 and 30,815.82

Step by Step Solution

1. Step 1: Write the proportion equation
   55,966.32 : 77,233.60 = 30,815.82 : x
2. Step 2: Convert to fraction form
   55,966.32/77,233.60 = 30,815.82/x
3. Step 3: Cross multiply
   55,966.32x = 77,233.60 × 30,815.82
4. Step 4: Simplify right side
   55,966.32x = 2,380,016,715.55
5. Step 5: Solve for x
   x = 2,380,016,715.55/55,966.32
6. Step 6: Final answer
   x = 42,525.87