Finding the Fourth Proportional to 341,689.86, 512,667.63 and 141,960.06

Step by Step Solution

1. Step 1: Write the proportion equation
   341,689.86 : 512,667.63 = 141,960.06 : x
2. Step 2: Convert to fraction form
   341,689.86/512,667.63 = 141,960.06/x
3. Step 3: Cross multiply
   341,689.86x = 512,667.63 × 141,960.06
4. Step 4: Simplify right side
   341,689.86x = 72,778,327,514.86
5. Step 5: Solve for x
   x = 72,778,327,514.86/341,689.86
6. Step 6: Final answer
   x = 212,995.28