Finding the Fourth Proportional to 13,448,323.56, 18,558,598.59 and 7,647,105.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,448,323.56 : 18,558,598.59 = 7,647,105.72 : x
2. Step 2: Convert to fraction form
   13,448,323.56/18,558,598.59 = 7,647,105.72/x
3. Step 3: Cross multiply
   13,448,323.56x = 18,558,598.59 × 7,647,105.72
4. Step 4: Simplify right side
   13,448,323.56x = 141,919,565,432,772.94
5. Step 5: Solve for x
   x = 141,919,565,432,772.94/13,448,323.56
6. Step 6: Final answer
   x = 10,552,955.90