Finding the Fourth Proportional to 10,667.91, 14,720.54 and 7,518.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667.91 : 14,720.54 = 7,518.63 : x
2. Step 2: Convert to fraction form
   10,667.91/14,720.54 = 7,518.63/x
3. Step 3: Cross multiply
   10,667.91x = 14,720.54 × 7,518.63
4. Step 4: Simplify right side
   10,667.91x = 110,678,293.66
5. Step 5: Solve for x
   x = 110,678,293.66/10,667.91
6. Step 6: Final answer
   x = 10,374.88