Finding the Fourth Proportional to 13,608,522.69, 18,779,795.72 and 7,413,614.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,608,522.69 : 18,779,795.72 = 7,413,614.56 : x
2. Step 2: Convert to fraction form
   13,608,522.69/18,779,795.72 = 7,413,614.56/x
3. Step 3: Cross multiply
   13,608,522.69x = 18,779,795.72 × 7,413,614.56
4. Step 4: Simplify right side
   13,608,522.69x = 139,226,166,983,617.67
5. Step 5: Solve for x
   x = 139,226,166,983,617.67/13,608,522.69
6. Step 6: Final answer
   x = 10,230,806.84