Finding the Fourth Proportional to 65,146.14, 89,975.34 and 43,888.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,146.14 : 89,975.34 = 43,888.50 : x
2. Step 2: Convert to fraction form
   65,146.14/89,975.34 = 43,888.50/x
3. Step 3: Cross multiply
   65,146.14x = 89,975.34 × 43,888.50
4. Step 4: Simplify right side
   65,146.14x = 3,948,882,709.59
5. Step 5: Solve for x
   x = 3,948,882,709.59/65,146.14
6. Step 6: Final answer
   x = 60,615.76