Finding the Fourth Proportional to 39,773.22, 54,887.59 and 21,868.98

Step by Step Solution

1. Step 1: Write the proportion equation
   39,773.22 : 54,887.59 = 21,868.98 : x
2. Step 2: Convert to fraction form
   39,773.22/54,887.59 = 21,868.98/x
3. Step 3: Cross multiply
   39,773.22x = 54,887.59 × 21,868.98
4. Step 4: Simplify right side
   39,773.22x = 1,200,335,607.96
5. Step 5: Solve for x
   x = 1,200,335,607.96/39,773.22
6. Step 6: Final answer
   x = 30,179.49