Finding the Fourth Proportional to 13,066,231.74, 19,601,963.82 and 7,317,141.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,066,231.74 : 19,601,963.82 = 7,317,141.12 : x
2. Step 2: Convert to fraction form
   13,066,231.74/19,601,963.82 = 7,317,141.12/x
3. Step 3: Cross multiply
   13,066,231.74x = 19,601,963.82 × 7,317,141.12
4. Step 4: Simplify right side
   13,066,231.74x = 143,430,335,500,074.28
5. Step 5: Solve for x
   x = 143,430,335,500,074.28/13,066,231.74
6. Step 6: Final answer
   x = 10,977,176.77