Finding the Fourth Proportional to 151,214.72, 208,677.06 and 83,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,214.72 : 208,677.06 = 83,238.50 : x
2. Step 2: Convert to fraction form
   151,214.72/208,677.06 = 83,238.50/x
3. Step 3: Cross multiply
   151,214.72x = 208,677.06 × 83,238.50
4. Step 4: Simplify right side
   151,214.72x = 17,369,965,980.50
5. Step 5: Solve for x
   x = 17,369,965,980.50/151,214.72
6. Step 6: Final answer
   x = 114,869.55