Finding the Fourth Proportional to 1,008,963,025.60, 1,512,718,188.72 and 619,982,194.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008,963,025.60 : 1,512,718,188.72 = 619,982,194.72 : x
2. Step 2: Convert to fraction form
   1,008,963,025.60/1,512,718,188.72 = 619,982,194.72/x
3. Step 3: Cross multiply
   1,008,963,025.60x = 1,512,718,188.72 × 619,982,194.72
4. Step 4: Simplify right side
   1,008,963,025.60x = 937,858,342,635,488,768
5. Step 5: Solve for x
   x = 937,858,342,635,488,768/1,008,963,025.60
6. Step 6: Final answer
   x = 929,526,968.62