Finding the Fourth Proportional to 1,411,014,495.34, 2,116,384,979.42 and 428,449,671.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411,014,495.34 : 2,116,384,979.42 = 428,449,671.52 : x
2. Step 2: Convert to fraction form
   1,411,014,495.34/2,116,384,979.42 = 428,449,671.52/x
3. Step 3: Cross multiply
   1,411,014,495.34x = 2,116,384,979.42 × 428,449,671.52
4. Step 4: Simplify right side
   1,411,014,495.34x = 906,764,449,238,141,056
5. Step 5: Solve for x
   x = 906,764,449,238,141,056/1,411,014,495.34
6. Step 6: Final answer
   x = 642,632,979.49