Finding the Fourth Proportional to 55,191.30, 82,764.24 and 21,906.78

Step by Step Solution

1. Step 1: Write the proportion equation
   55,191.30 : 82,764.24 = 21,906.78 : x
2. Step 2: Convert to fraction form
   55,191.30/82,764.24 = 21,906.78/x
3. Step 3: Cross multiply
   55,191.30x = 82,764.24 × 21,906.78
4. Step 4: Simplify right side
   55,191.30x = 1,813,097,997.55
5. Step 5: Solve for x
   x = 1,813,097,997.55/55,191.30
6. Step 6: Final answer
   x = 32,851.16