Finding the Fourth Proportional to 391,522,436.93, 540,315,168.23 and 224,291,018.72

Step by Step Solution

1. Step 1: Write the proportion equation
   391,522,436.93 : 540,315,168.23 = 224,291,018.72 : x
2. Step 2: Convert to fraction form
   391,522,436.93/540,315,168.23 = 224,291,018.72/x
3. Step 3: Cross multiply
   391,522,436.93x = 540,315,168.23 × 224,291,018.72
4. Step 4: Simplify right side
   391,522,436.93x = 121,187,839,514,086,384
5. Step 5: Solve for x
   x = 121,187,839,514,086,384/391,522,436.93
6. Step 6: Final answer
   x = 309,529,743.59