Finding the Fourth Proportional to 236,205.63, 354,271.86 and 86,410.89

Step by Step Solution

1. Step 1: Write the proportion equation
   236,205.63 : 354,271.86 = 86,410.89 : x
2. Step 2: Convert to fraction form
   236,205.63/354,271.86 = 86,410.89/x
3. Step 3: Cross multiply
   236,205.63x = 354,271.86 × 86,410.89
4. Step 4: Simplify right side
   236,205.63x = 30,612,946,724.56
5. Step 5: Solve for x
   x = 30,612,946,724.56/236,205.63
6. Step 6: Final answer
   x = 129,602.95