Finding the Fourth Proportional to 9,174,555.72, 12,659,469.70 and 5,307,436.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,174,555.72 : 12,659,469.70 = 5,307,436.68 : x
2. Step 2: Convert to fraction form
   9,174,555.72/12,659,469.70 = 5,307,436.68/x
3. Step 3: Cross multiply
   9,174,555.72x = 12,659,469.70 × 5,307,436.68
4. Step 4: Simplify right side
   9,174,555.72x = 67,189,333,835,128.59
5. Step 5: Solve for x
   x = 67,189,333,835,128.59/9,174,555.72
6. Step 6: Final answer
   x = 7,323,442.78