Finding the Fourth Proportional to 3,947,182.72, 5,447,128.76 and 2,136,346.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947,182.72 : 5,447,128.76 = 2,136,346.72 : x
2. Step 2: Convert to fraction form
   3,947,182.72/5,447,128.76 = 2,136,346.72/x
3. Step 3: Cross multiply
   3,947,182.72x = 5,447,128.76 × 2,136,346.72
4. Step 4: Simplify right side
   3,947,182.72x = 11,636,955,659,843.67
5. Step 5: Solve for x
   x = 11,636,955,659,843.67/3,947,182.72
6. Step 6: Final answer
   x = 2,948,167.46