Finding the Fourth Proportional to 3,892,056.28, 5,371,047.17 and 2,173,238.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,892,056.28 : 5,371,047.17 = 2,173,238.31 : x
2. Step 2: Convert to fraction form
   3,892,056.28/5,371,047.17 = 2,173,238.31/x
3. Step 3: Cross multiply
   3,892,056.28x = 5,371,047.17 × 2,173,238.31
4. Step 4: Simplify right side
   3,892,056.28x = 11,672,565,455,761.59
5. Step 5: Solve for x
   x = 11,672,565,455,761.59/3,892,056.28
6. Step 6: Final answer
   x = 2,999,074.17