Finding the Fourth Proportional to 498,488.88, 747,977.31 and 308,898.53

Step by Step Solution

1. Step 1: Write the proportion equation
   498,488.88 : 747,977.31 = 308,898.53 : x
2. Step 2: Convert to fraction form
   498,488.88/747,977.31 = 308,898.53/x
3. Step 3: Cross multiply
   498,488.88x = 747,977.31 × 308,898.53
4. Step 4: Simplify right side
   498,488.88x = 231,049,089,987.86
5. Step 5: Solve for x
   x = 231,049,089,987.86/498,488.88
6. Step 6: Final answer
   x = 463,498.99