Finding the Fourth Proportional to 120,314,601.92, 166,034,361.28 and 65,310,495.68

Step by Step Solution

1. Step 1: Write the proportion equation
   120,314,601.92 : 166,034,361.28 = 65,310,495.68 : x
2. Step 2: Convert to fraction form
   120,314,601.92/166,034,361.28 = 65,310,495.68/x
3. Step 3: Cross multiply
   120,314,601.92x = 166,034,361.28 × 65,310,495.68
4. Step 4: Simplify right side
   120,314,601.92x = 10,843,786,435,109,000
5. Step 5: Solve for x
   x = 10,843,786,435,109,000/120,314,601.92
6. Step 6: Final answer
   x = 90,128,598.38