Finding the Fourth Proportional to 493,540,401.88, 735,898,220.60 and 479,980,684.72

Step by Step Solution

1. Step 1: Write the proportion equation
   493,540,401.88 : 735,898,220.60 = 479,980,684.72 : x
2. Step 2: Convert to fraction form
   493,540,401.88/735,898,220.60 = 479,980,684.72/x
3. Step 3: Cross multiply
   493,540,401.88x = 735,898,220.60 × 479,980,684.72
4. Step 4: Simplify right side
   493,540,401.88x = 353,216,931,807,817,664
5. Step 5: Solve for x
   x = 353,216,931,807,817,664/493,540,401.88
6. Step 6: Final answer
   x = 715,679,872.33