Finding the Fourth Proportional to 64,323.09, 88,765.88 and 39,172.59

Step by Step Solution

1. Step 1: Write the proportion equation
   64,323.09 : 88,765.88 = 39,172.59 : x
2. Step 2: Convert to fraction form
   64,323.09/88,765.88 = 39,172.59/x
3. Step 3: Cross multiply
   64,323.09x = 88,765.88 × 39,172.59
4. Step 4: Simplify right side
   64,323.09x = 3,477,189,227.37
5. Step 5: Solve for x
   x = 3,477,189,227.37/64,323.09
6. Step 6: Final answer
   x = 54,058.18