Finding the Fourth Proportional to 85,440, 117,900.56 and 49,624.16

Step by Step Solution

1. Step 1: Write the proportion equation
   85,440 : 117,900.56 = 49,624.16 : x
2. Step 2: Convert to fraction form
   85,440/117,900.56 = 49,624.16/x
3. Step 3: Cross multiply
   85,440x = 117,900.56 × 49,624.16
4. Step 4: Simplify right side
   85,440x = 5,850,716,253.53
5. Step 5: Solve for x
   x = 5,850,716,253.53/85,440
6. Step 6: Final answer
   x = 68,477.48