Finding the Fourth Proportional to 65,147.44, 89,780.59 and 52,212.01

Step by Step Solution

1. Step 1: Write the proportion equation
   65,147.44 : 89,780.59 = 52,212.01 : x
2. Step 2: Convert to fraction form
   65,147.44/89,780.59 = 52,212.01/x
3. Step 3: Cross multiply
   65,147.44x = 89,780.59 × 52,212.01
4. Step 4: Simplify right side
   65,147.44x = 4,687,625,062.89
5. Step 5: Solve for x
   x = 4,687,625,062.89/65,147.44
6. Step 6: Final answer
   x = 71,954.09