Finding the Fourth Proportional to 260,667.12, 359,720.40 and 141,435.12

Step by Step Solution

1. Step 1: Write the proportion equation
   260,667.12 : 359,720.40 = 141,435.12 : x
2. Step 2: Convert to fraction form
   260,667.12/359,720.40 = 141,435.12/x
3. Step 3: Cross multiply
   260,667.12x = 359,720.40 × 141,435.12
4. Step 4: Simplify right side
   260,667.12x = 50,877,097,940.45
5. Step 5: Solve for x
   x = 50,877,097,940.45/260,667.12
6. Step 6: Final answer
   x = 195,180.34