Finding the Fourth Proportional to 1,276,812,499.50, 1,915,299,662.76 and 539,745,035.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,276,812,499.50 : 1,915,299,662.76 = 539,745,035.58 : x
2. Step 2: Convert to fraction form
   1,276,812,499.50/1,915,299,662.76 = 539,745,035.58/x
3. Step 3: Cross multiply
   1,276,812,499.50x = 1,915,299,662.76 × 539,745,035.58
4. Step 4: Simplify right side
   1,276,812,499.50x = 1,033,773,484,622,758,272
5. Step 5: Solve for x
   x = 1,033,773,484,622,758,272/1,276,812,499.50
6. Step 6: Final answer
   x = 809,651,757.82