Finding the Fourth Proportional to 705,860,499.35, 1,058,752,432.67 and 214,535,462.09

Step by Step Solution

1. Step 1: Write the proportion equation
   705,860,499.35 : 1,058,752,432.67 = 214,535,462.09 : x
2. Step 2: Convert to fraction form
   705,860,499.35/1,058,752,432.67 = 214,535,462.09/x
3. Step 3: Cross multiply
   705,860,499.35x = 1,058,752,432.67 × 214,535,462.09
4. Step 4: Simplify right side
   705,860,499.35x = 227,139,942,381,995,456
5. Step 5: Solve for x
   x = 227,139,942,381,995,456/705,860,499.35
6. Step 6: Final answer
   x = 321,791,547.47