Finding the Fourth Proportional to 8,472,685.72, 12,709,860.18 and 2,407,697.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,472,685.72 : 12,709,860.18 = 2,407,697.32 : x
2. Step 2: Convert to fraction form
   8,472,685.72/12,709,860.18 = 2,407,697.32/x
3. Step 3: Cross multiply
   8,472,685.72x = 12,709,860.18 × 2,407,697.32
4. Step 4: Simplify right side
   8,472,685.72x = 30,601,496,292,960.71
5. Step 5: Solve for x
   x = 30,601,496,292,960.71/8,472,685.72
6. Step 6: Final answer
   x = 3,611,782.30