Finding the Fourth Proportional to 10,182.63, 15,343.31 and 8,374.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,182.63 : 15,343.31 = 8,374.25 : x
2. Step 2: Convert to fraction form
   10,182.63/15,343.31 = 8,374.25/x
3. Step 3: Cross multiply
   10,182.63x = 15,343.31 × 8,374.25
4. Step 4: Simplify right side
   10,182.63x = 128,488,713.77
5. Step 5: Solve for x
   x = 128,488,713.77/10,182.63
6. Step 6: Final answer
   x = 12,618.42