Finding the Fourth Proportional to 55,930.77, 77,184.50 and 30,780.27

Step by Step Solution

1. Step 1: Write the proportion equation
   55,930.77 : 77,184.50 = 30,780.27 : x
2. Step 2: Convert to fraction form
   55,930.77/77,184.50 = 30,780.27/x
3. Step 3: Cross multiply
   55,930.77x = 77,184.50 × 30,780.27
4. Step 4: Simplify right side
   55,930.77x = 2,375,759,595.91
5. Step 5: Solve for x
   x = 2,375,759,595.91/55,930.77
6. Step 6: Final answer
   x = 42,476.79