Finding the Fourth Proportional to 51,196.70, 70,654.68 and 31,055.48

Step by Step Solution

1. Step 1: Write the proportion equation
   51,196.70 : 70,654.68 = 31,055.48 : x
2. Step 2: Convert to fraction form
   51,196.70/70,654.68 = 31,055.48/x
3. Step 3: Cross multiply
   51,196.70x = 70,654.68 × 31,055.48
4. Step 4: Simplify right side
   51,196.70x = 2,194,215,001.65
5. Step 5: Solve for x
   x = 2,194,215,001.65/51,196.70
6. Step 6: Final answer
   x = 42,858.52