Finding the Fourth Proportional to 9,976.17, 14,927.28 and 7,345.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.17 : 14,927.28 = 7,345.62 : x
2. Step 2: Convert to fraction form
   9,976.17/14,927.28 = 7,345.62/x
3. Step 3: Cross multiply
   9,976.17x = 14,927.28 × 7,345.62
4. Step 4: Simplify right side
   9,976.17x = 109,650,126.51
5. Step 5: Solve for x
   x = 109,650,126.51/9,976.17
6. Step 6: Final answer
   x = 10,991.20