Finding the Fourth Proportional to 572,499,328.50, 790,082,820.72 and 431,121,117.29

Step by Step Solution

1. Step 1: Write the proportion equation
   572,499,328.50 : 790,082,820.72 = 431,121,117.29 : x
2. Step 2: Convert to fraction form
   572,499,328.50/790,082,820.72 = 431,121,117.29/x
3. Step 3: Cross multiply
   572,499,328.50x = 790,082,820.72 × 431,121,117.29
4. Step 4: Simplify right side
   572,499,328.50x = 340,621,388,416,490,752
5. Step 5: Solve for x
   x = 340,621,388,416,490,752/572,499,328.50
6. Step 6: Final answer
   x = 594,972,555.35