Finding the Fourth Proportional to 900,884,784.58, 1,243,233,836.48 and 519,399,272.30

Step by Step Solution

1. Step 1: Write the proportion equation
   900,884,784.58 : 1,243,233,836.48 = 519,399,272.30 : x
2. Step 2: Convert to fraction form
   900,884,784.58/1,243,233,836.48 = 519,399,272.30/x
3. Step 3: Cross multiply
   900,884,784.58x = 1,243,233,836.48 × 519,399,272.30
4. Step 4: Simplify right side
   900,884,784.58x = 645,734,749,961,531,520
5. Step 5: Solve for x
   x = 645,734,749,961,531,520/900,884,784.58
6. Step 6: Final answer
   x = 716,778,394.99