Finding the Fourth Proportional to 4,642,298.25, 6,406,394.78 and 2,900,978.79

Step by Step Solution

1. Step 1: Write the proportion equation
   4,642,298.25 : 6,406,394.78 = 2,900,978.79 : x
2. Step 2: Convert to fraction form
   4,642,298.25/6,406,394.78 = 2,900,978.79/x
3. Step 3: Cross multiply
   4,642,298.25x = 6,406,394.78 × 2,900,978.79
4. Step 4: Simplify right side
   4,642,298.25x = 18,584,815,362,641.82
5. Step 5: Solve for x
   x = 18,584,815,362,641.82/4,642,298.25
6. Step 6: Final answer
   x = 4,003,365.22