Finding the Fourth Proportional to 13,667.93, 18,861.46 and 7,699.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,667.93 : 18,861.46 = 7,699.58 : x
2. Step 2: Convert to fraction form
   13,667.93/18,861.46 = 7,699.58/x
3. Step 3: Cross multiply
   13,667.93x = 18,861.46 × 7,699.58
4. Step 4: Simplify right side
   13,667.93x = 145,225,206.63
5. Step 5: Solve for x
   x = 145,225,206.63/13,667.93
6. Step 6: Final answer
   x = 10,625.26