Finding the Fourth Proportional to 3,736,686.72, 5,156,643.42 and 2,105,113.66

Step by Step Solution

1. Step 1: Write the proportion equation
   3,736,686.72 : 5,156,643.42 = 2,105,113.66 : x
2. Step 2: Convert to fraction form
   3,736,686.72/5,156,643.42 = 2,105,113.66/x
3. Step 3: Cross multiply
   3,736,686.72x = 5,156,643.42 × 2,105,113.66
4. Step 4: Simplify right side
   3,736,686.72x = 10,855,320,503,191.12
5. Step 5: Solve for x
   x = 10,855,320,503,191.12/3,736,686.72
6. Step 6: Final answer
   x = 2,905,065.72