Finding the Fourth Proportional to 13,969.59, 19,278.37 and 7,681.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,969.59 : 19,278.37 = 7,681.96 : x
2. Step 2: Convert to fraction form
   13,969.59/19,278.37 = 7,681.96/x
3. Step 3: Cross multiply
   13,969.59x = 19,278.37 × 7,681.96
4. Step 4: Simplify right side
   13,969.59x = 148,095,667.21
5. Step 5: Solve for x
   x = 148,095,667.21/13,969.59
6. Step 6: Final answer
   x = 10,601.29