Finding the Fourth Proportional to 12,667.29, 19,000.47 and 3,901.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,667.29 : 19,000.47 = 3,901.98 : x
2. Step 2: Convert to fraction form
   12,667.29/19,000.47 = 3,901.98/x
3. Step 3: Cross multiply
   12,667.29x = 19,000.47 × 3,901.98
4. Step 4: Simplify right side
   12,667.29x = 74,139,358.93
5. Step 5: Solve for x
   x = 74,139,358.93/12,667.29
6. Step 6: Final answer
   x = 5,852.82