Finding the Fourth Proportional to 65,225.60, 90,028.32 and 60,793.28

Step by Step Solution

1. Step 1: Write the proportion equation
   65,225.60 : 90,028.32 = 60,793.28 : x
2. Step 2: Convert to fraction form
   65,225.60/90,028.32 = 60,793.28/x
3. Step 3: Cross multiply
   65,225.60x = 90,028.32 × 60,793.28
4. Step 4: Simplify right side
   65,225.60x = 5,473,116,865.69
5. Step 5: Solve for x
   x = 5,473,116,865.69/65,225.60
6. Step 6: Final answer
   x = 83,910.56