Finding the Fourth Proportional to 12,667.93, 19,001.94 and 3,902.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,667.93 : 19,001.94 = 3,902.80 : x
2. Step 2: Convert to fraction form
   12,667.93/19,001.94 = 3,902.80/x
3. Step 3: Cross multiply
   12,667.93x = 19,001.94 × 3,902.80
4. Step 4: Simplify right side
   12,667.93x = 74,160,771.43
5. Step 5: Solve for x
   x = 74,160,771.43/12,667.93
6. Step 6: Final answer
   x = 5,854.21