Finding the Fourth Proportional to 3,846,910.86, 5,762,783.34 and 3,128,063.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,846,910.86 : 5,762,783.34 = 3,128,063.94 : x
2. Step 2: Convert to fraction form
   3,846,910.86/5,762,783.34 = 3,128,063.94/x
3. Step 3: Cross multiply
   3,846,910.86x = 5,762,783.34 × 3,128,063.94
4. Step 4: Simplify right side
   3,846,910.86x = 18,026,354,759,886.76
5. Step 5: Solve for x
   x = 18,026,354,759,886.76/3,846,910.86
6. Step 6: Final answer
   x = 4,685,929.94