Finding the Fourth Proportional to 510,441.16, 765,603.42 and 136,493.32

Step by Step Solution

1. Step 1: Write the proportion equation
   510,441.16 : 765,603.42 = 136,493.32 : x
2. Step 2: Convert to fraction form
   510,441.16/765,603.42 = 136,493.32/x
3. Step 3: Cross multiply
   510,441.16x = 765,603.42 × 136,493.32
4. Step 4: Simplify right side
   510,441.16x = 104,499,752,599.15
5. Step 5: Solve for x
   x = 104,499,752,599.15/510,441.16
6. Step 6: Final answer
   x = 204,724.39