Finding the Fourth Proportional to 21,520,168.38, 32,143,100.34 and 19,467,671.28

Step by Step Solution

1. Step 1: Write the proportion equation
   21,520,168.38 : 32,143,100.34 = 19,467,671.28 : x
2. Step 2: Convert to fraction form
   21,520,168.38/32,143,100.34 = 19,467,671.28/x
3. Step 3: Cross multiply
   21,520,168.38x = 32,143,100.34 × 19,467,671.28
4. Step 4: Simplify right side
   21,520,168.38x = 625,751,311,339,176.25
5. Step 5: Solve for x
   x = 625,751,311,339,176.25/21,520,168.38
6. Step 6: Final answer
   x = 29,077,435.65