Finding the Fourth Proportional to 8,737,406.80, 13,095,816.18 and 3,939,478.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,737,406.80 : 13,095,816.18 = 3,939,478.72 : x
2. Step 2: Convert to fraction form
   8,737,406.80/13,095,816.18 = 3,939,478.72/x
3. Step 3: Cross multiply
   8,737,406.80x = 13,095,816.18 × 3,939,478.72
4. Step 4: Simplify right side
   8,737,406.80x = 51,590,689,162,141.69
5. Step 5: Solve for x
   x = 51,590,689,162,141.69/8,737,406.80
6. Step 6: Final answer
   x = 5,904,576.76