Finding the Fourth Proportional to 162,651.36, 224,057.82 and 138,374.57

Step by Step Solution

1. Step 1: Write the proportion equation
   162,651.36 : 224,057.82 = 138,374.57 : x
2. Step 2: Convert to fraction form
   162,651.36/224,057.82 = 138,374.57/x
3. Step 3: Cross multiply
   162,651.36x = 224,057.82 × 138,374.57
4. Step 4: Simplify right side
   162,651.36x = 31,003,904,769.37
5. Step 5: Solve for x
   x = 31,003,904,769.37/162,651.36
6. Step 6: Final answer
   x = 190,615.71