Finding the Fourth Proportional to 13,109,464.72, 18,091,138.63 and 7,606,116.45

Step by Step Solution

1. Step 1: Write the proportion equation
   13,109,464.72 : 18,091,138.63 = 7,606,116.45 : x
2. Step 2: Convert to fraction form
   13,109,464.72/18,091,138.63 = 7,606,116.45/x
3. Step 3: Cross multiply
   13,109,464.72x = 18,091,138.63 × 7,606,116.45
4. Step 4: Simplify right side
   13,109,464.72x = 137,603,307,132,873.45
5. Step 5: Solve for x
   x = 137,603,307,132,873.45/13,109,464.72
6. Step 6: Final answer
   x = 10,496,485.56