Finding the Fourth Proportional to 573,064,116.96, 790,820,916.52 and 318,743,758.56

Step by Step Solution

1. Step 1: Write the proportion equation
   573,064,116.96 : 790,820,916.52 = 318,743,758.56 : x
2. Step 2: Convert to fraction form
   573,064,116.96/790,820,916.52 = 318,743,758.56/x
3. Step 3: Cross multiply
   573,064,116.96x = 790,820,916.52 × 318,743,758.56
4. Step 4: Simplify right side
   573,064,116.96x = 252,069,231,279,448,800
5. Step 5: Solve for x
   x = 252,069,231,279,448,800/573,064,116.96
6. Step 6: Final answer
   x = 439,862,179.15