Finding the Fourth Proportional to 1,140,553,714.32, 1,573,784,341.83 and 664,322,460.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,140,553,714.32 : 1,573,784,341.83 = 664,322,460.12 : x
2. Step 2: Convert to fraction form
   1,140,553,714.32/1,573,784,341.83 = 664,322,460.12/x
3. Step 3: Cross multiply
   1,140,553,714.32x = 1,573,784,341.83 × 664,322,460.12
4. Step 4: Simplify right side
   1,140,553,714.32x = 1,045,500,285,662,840,576
5. Step 5: Solve for x
   x = 1,045,500,285,662,840,576/1,140,553,714.32
6. Step 6: Final answer
   x = 916,660,278.72