Finding the Fourth Proportional to 12,671.52, 19,010.37 and 8,930.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,671.52 : 19,010.37 = 8,930.59 : x
2. Step 2: Convert to fraction form
   12,671.52/19,010.37 = 8,930.59/x
3. Step 3: Cross multiply
   12,671.52x = 19,010.37 × 8,930.59
4. Step 4: Simplify right side
   12,671.52x = 169,773,820.22
5. Step 5: Solve for x
   x = 169,773,820.22/12,671.52
6. Step 6: Final answer
   x = 13,398.06