Finding the Fourth Proportional to 151,647.51, 209,271.58 and 83,667.35

Step by Step Solution

1. Step 1: Write the proportion equation
   151,647.51 : 209,271.58 = 83,667.35 : x
2. Step 2: Convert to fraction form
   151,647.51/209,271.58 = 83,667.35/x
3. Step 3: Cross multiply
   151,647.51x = 209,271.58 × 83,667.35
4. Step 4: Simplify right side
   151,647.51x = 17,509,198,528.91
5. Step 5: Solve for x
   x = 17,509,198,528.91/151,647.51
6. Step 6: Final answer
   x = 115,459.85