Finding the Fourth Proportional to 19,116.15, 28,667.72 and 7,267.06

Step by Step Solution

1. Step 1: Write the proportion equation
   19,116.15 : 28,667.72 = 7,267.06 : x
2. Step 2: Convert to fraction form
   19,116.15/28,667.72 = 7,267.06/x
3. Step 3: Cross multiply
   19,116.15x = 28,667.72 × 7,267.06
4. Step 4: Simplify right side
   19,116.15x = 208,330,041.30
5. Step 5: Solve for x
   x = 208,330,041.30/19,116.15
6. Step 6: Final answer
   x = 10,898.12