Finding the Fourth Proportional to 11,639,449.32, 16,061,233.06 and 7,168,296.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,639,449.32 : 16,061,233.06 = 7,168,296.72 : x
2. Step 2: Convert to fraction form
   11,639,449.32/16,061,233.06 = 7,168,296.72/x
3. Step 3: Cross multiply
   11,639,449.32x = 16,061,233.06 × 7,168,296.72
4. Step 4: Simplify right side
   11,639,449.32x = 115,131,684,263,153.56
5. Step 5: Solve for x
   x = 115,131,684,263,153.56/11,639,449.32
6. Step 6: Final answer
   x = 9,891,506.13