Finding the Fourth Proportional to 65,061.09, 89,749.64 and 39,575.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,061.09 : 89,749.64 = 39,575.25 : x
2. Step 2: Convert to fraction form
   65,061.09/89,749.64 = 39,575.25/x
3. Step 3: Cross multiply
   65,061.09x = 89,749.64 × 39,575.25
4. Step 4: Simplify right side
   65,061.09x = 3,551,864,316.74
5. Step 5: Solve for x
   x = 3,551,864,316.74/65,061.09
6. Step 6: Final answer
   x = 54,592.76