Finding the Fourth Proportional to 73,443.78, 101,352.06 and 39,909.78

Step by Step Solution

1. Step 1: Write the proportion equation
   73,443.78 : 101,352.06 = 39,909.78 : x
2. Step 2: Convert to fraction form
   73,443.78/101,352.06 = 39,909.78/x
3. Step 3: Cross multiply
   73,443.78x = 101,352.06 × 39,909.78
4. Step 4: Simplify right side
   73,443.78x = 4,044,938,417.15
5. Step 5: Solve for x
   x = 4,044,938,417.15/73,443.78
6. Step 6: Final answer
   x = 55,075.30