Finding the Fourth Proportional to 341,866.82, 512,800.59 and 89,147.09

Step by Step Solution

1. Step 1: Write the proportion equation
   341,866.82 : 512,800.59 = 89,147.09 : x
2. Step 2: Convert to fraction form
   341,866.82/512,800.59 = 89,147.09/x
3. Step 3: Cross multiply
   341,866.82x = 512,800.59 × 89,147.09
4. Step 4: Simplify right side
   341,866.82x = 45,714,677,784.78
5. Step 5: Solve for x
   x = 45,714,677,784.78/341,866.82
6. Step 6: Final answer
   x = 133,720.72