Finding the Fourth Proportional to 418,404.78, 627,592.59 and 134,091.15

Step by Step Solution

1. Step 1: Write the proportion equation
   418,404.78 : 627,592.59 = 134,091.15 : x
2. Step 2: Convert to fraction form
   418,404.78/627,592.59 = 134,091.15/x
3. Step 3: Cross multiply
   418,404.78x = 627,592.59 × 134,091.15
4. Step 4: Simplify right side
   418,404.78x = 84,154,612,124.58
5. Step 5: Solve for x
   x = 84,154,612,124.58/418,404.78
6. Step 6: Final answer
   x = 201,132.05