Finding the Fourth Proportional to 8,311,374.10, 12,467,061.15 and 5,122,728.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,311,374.10 : 12,467,061.15 = 5,122,728.10 : x
2. Step 2: Convert to fraction form
   8,311,374.10/12,467,061.15 = 5,122,728.10/x
3. Step 3: Cross multiply
   8,311,374.10x = 12,467,061.15 × 5,122,728.10
4. Step 4: Simplify right side
   8,311,374.10x = 63,865,364,477,523.31
5. Step 5: Solve for x
   x = 63,865,364,477,523.31/8,311,374.10
6. Step 6: Final answer
   x = 7,684,092.15