Finding the Fourth Proportional to 9,570,791.72, 13,207,327.58 and 5,278,439.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,570,791.72 : 13,207,327.58 = 5,278,439.72 : x
2. Step 2: Convert to fraction form
   9,570,791.72/13,207,327.58 = 5,278,439.72/x
3. Step 3: Cross multiply
   9,570,791.72x = 13,207,327.58 × 5,278,439.72
4. Step 4: Simplify right side
   9,570,791.72x = 69,714,082,493,323.48
5. Step 5: Solve for x
   x = 69,714,082,493,323.48/9,570,791.72
6. Step 6: Final answer
   x = 7,284,045.51