Finding the Fourth Proportional to 71,773.58, 107,664.42 and 21,855.30

Step by Step Solution

1. Step 1: Write the proportion equation
   71,773.58 : 107,664.42 = 21,855.30 : x
2. Step 2: Convert to fraction form
   71,773.58/107,664.42 = 21,855.30/x
3. Step 3: Cross multiply
   71,773.58x = 107,664.42 × 21,855.30
4. Step 4: Simplify right side
   71,773.58x = 2,353,038,198.43
5. Step 5: Solve for x
   x = 2,353,038,198.43/71,773.58
6. Step 6: Final answer
   x = 32,784.19