Finding the Fourth Proportional to 62,928, 86,839.60 and 34,633.12

Step by Step Solution

1. Step 1: Write the proportion equation
   62,928 : 86,839.60 = 34,633.12 : x
2. Step 2: Convert to fraction form
   62,928/86,839.60 = 34,633.12/x
3. Step 3: Cross multiply
   62,928x = 86,839.60 × 34,633.12
4. Step 4: Simplify right side
   62,928x = 3,007,526,287.55
5. Step 5: Solve for x
   x = 3,007,526,287.55/62,928
6. Step 6: Final answer
   x = 47,793.13