Finding the Fourth Proportional to 51,344.72, 70,860.48 and 31,196.96

Step by Step Solution

1. Step 1: Write the proportion equation
   51,344.72 : 70,860.48 = 31,196.96 : x
2. Step 2: Convert to fraction form
   51,344.72/70,860.48 = 31,196.96/x
3. Step 3: Cross multiply
   51,344.72x = 70,860.48 × 31,196.96
4. Step 4: Simplify right side
   51,344.72x = 2,210,631,560.14
5. Step 5: Solve for x
   x = 2,210,631,560.14/51,344.72
6. Step 6: Final answer
   x = 43,054.70