Finding the Fourth Proportional to 447,915,966, 672,138,488.52 and 189,114,434.16

Step by Step Solution

1. Step 1: Write the proportion equation
   447,915,966 : 672,138,488.52 = 189,114,434.16 : x
2. Step 2: Convert to fraction form
   447,915,966/672,138,488.52 = 189,114,434.16/x
3. Step 3: Cross multiply
   447,915,966x = 672,138,488.52 × 189,114,434.16
4. Step 4: Simplify right side
   447,915,966x = 127,111,089,933,617,456
5. Step 5: Solve for x
   x = 127,111,089,933,617,456/447,915,966
6. Step 6: Final answer
   x = 283,783,342.37