Finding the Fourth Proportional to 908,075,499.34, 1,253,144,181.71 and 490,387,747.74

Step by Step Solution

1. Step 1: Write the proportion equation
   908,075,499.34 : 1,253,144,181.71 = 490,387,747.74 : x
2. Step 2: Convert to fraction form
   908,075,499.34/1,253,144,181.71 = 490,387,747.74/x
3. Step 3: Cross multiply
   908,075,499.34x = 1,253,144,181.71 × 490,387,747.74
4. Step 4: Simplify right side
   908,075,499.34x = 614,526,552,862,252,288
5. Step 5: Solve for x
   x = 614,526,552,862,252,288/908,075,499.34
6. Step 6: Final answer
   x = 676,735,087.90