Finding the Fourth Proportional to 68,499.15, 102,747.29 and 31,563.15

Step by Step Solution

1. Step 1: Write the proportion equation
   68,499.15 : 102,747.29 = 31,563.15 : x
2. Step 2: Convert to fraction form
   68,499.15/102,747.29 = 31,563.15/x
3. Step 3: Cross multiply
   68,499.15x = 102,747.29 × 31,563.15
4. Step 4: Simplify right side
   68,499.15x = 3,243,027,968.55
5. Step 5: Solve for x
   x = 3,243,027,968.55/68,499.15
6. Step 6: Final answer
   x = 47,344.06