Finding the Fourth Proportional to 377,682,182.33, 521,189,188.83 and 216,772,651.31

Step by Step Solution

1. Step 1: Write the proportion equation
   377,682,182.33 : 521,189,188.83 = 216,772,651.31 : x
2. Step 2: Convert to fraction form
   377,682,182.33/521,189,188.83 = 216,772,651.31/x
3. Step 3: Cross multiply
   377,682,182.33x = 521,189,188.83 × 216,772,651.31
4. Step 4: Simplify right side
   377,682,182.33x = 112,979,562,294,181,392
5. Step 5: Solve for x
   x = 112,979,562,294,181,392/377,682,182.33
6. Step 6: Final answer
   x = 299,139,243.47