Finding the Fourth Proportional to 88,740, 122,461.20 and 60,495.12

Step by Step Solution

1. Step 1: Write the proportion equation
   88,740 : 122,461.20 = 60,495.12 : x
2. Step 2: Convert to fraction form
   88,740/122,461.20 = 60,495.12/x
3. Step 3: Cross multiply
   88,740x = 122,461.20 × 60,495.12
4. Step 4: Simplify right side
   88,740x = 7,408,304,989.34
5. Step 5: Solve for x
   x = 7,408,304,989.34/88,740
6. Step 6: Final answer
   x = 83,483.27