Finding the Fourth Proportional to 259,142.10, 357,493.89 and 151,645.59

Step by Step Solution

1. Step 1: Write the proportion equation
   259,142.10 : 357,493.89 = 151,645.59 : x
2. Step 2: Convert to fraction form
   259,142.10/357,493.89 = 151,645.59/x
3. Step 3: Cross multiply
   259,142.10x = 357,493.89 × 151,645.59
4. Step 4: Simplify right side
   259,142.10x = 54,212,371,870.45
5. Step 5: Solve for x
   x = 54,212,371,870.45/259,142.10
6. Step 6: Final answer
   x = 209,199.40