Finding the Fourth Proportional to 67,688.09, 93,419.34 and 39,002.25

Step by Step Solution

1. Step 1: Write the proportion equation
   67,688.09 : 93,419.34 = 39,002.25 : x
2. Step 2: Convert to fraction form
   67,688.09/93,419.34 = 39,002.25/x
3. Step 3: Cross multiply
   67,688.09x = 93,419.34 × 39,002.25
4. Step 4: Simplify right side
   67,688.09x = 3,643,564,453.52
5. Step 5: Solve for x
   x = 3,643,564,453.52/67,688.09
6. Step 6: Final answer
   x = 53,828.74