Finding the Fourth Proportional to 4,139,710.56, 5,710,912.56 and 2,991,972.96

Step by Step Solution

1. Step 1: Write the proportion equation
   4,139,710.56 : 5,710,912.56 = 2,991,972.96 : x
2. Step 2: Convert to fraction form
   4,139,710.56/5,710,912.56 = 2,991,972.96/x
3. Step 3: Cross multiply
   4,139,710.56x = 5,710,912.56 × 2,991,972.96
4. Step 4: Simplify right side
   4,139,710.56x = 17,086,895,956,444.38
5. Step 5: Solve for x
   x = 17,086,895,956,444.38/4,139,710.56
6. Step 6: Final answer
   x = 4,127,558.12