Finding the Fourth Proportional to 5,357,040.78, 7,392,769.98 and 2,909,699.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,357,040.78 : 7,392,769.98 = 2,909,699.69 : x
2. Step 2: Convert to fraction form
   5,357,040.78/7,392,769.98 = 2,909,699.69/x
3. Step 3: Cross multiply
   5,357,040.78x = 7,392,769.98 × 2,909,699.69
4. Step 4: Simplify right side
   5,357,040.78x = 21,510,740,519,047.31
5. Step 5: Solve for x
   x = 21,510,740,519,047.31/5,357,040.78
6. Step 6: Final answer
   x = 4,015,414.74