Finding the Fourth Proportional to 55,780.75, 76,981.55 and 34,564.15

Step by Step Solution

1. Step 1: Write the proportion equation
   55,780.75 : 76,981.55 = 34,564.15 : x
2. Step 2: Convert to fraction form
   55,780.75/76,981.55 = 34,564.15/x
3. Step 3: Cross multiply
   55,780.75x = 76,981.55 × 34,564.15
4. Step 4: Simplify right side
   55,780.75x = 2,660,801,841.43
5. Step 5: Solve for x
   x = 2,660,801,841.43/55,780.75
6. Step 6: Final answer
   x = 47,701.08