Finding the Fourth Proportional to 1,065,710,099.96, 1,470,605,278.72 and 619,641,816.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065,710,099.96 : 1,470,605,278.72 = 619,641,816.72 : x
2. Step 2: Convert to fraction form
   1,065,710,099.96/1,470,605,278.72 = 619,641,816.72/x
3. Step 3: Cross multiply
   1,065,710,099.96x = 1,470,605,278.72 × 619,641,816.72
4. Step 4: Simplify right side
   1,065,710,099.96x = 911,248,526,584,082,816
5. Step 5: Solve for x
   x = 911,248,526,584,082,816/1,065,710,099.96
6. Step 6: Final answer
   x = 855,062,297.54