Finding the Fourth Proportional to 151,109.35, 208,531.38 and 83,131.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,109.35 : 208,531.38 = 83,131.50 : x
2. Step 2: Convert to fraction form
   151,109.35/208,531.38 = 83,131.50/x
3. Step 3: Cross multiply
   151,109.35x = 208,531.38 × 83,131.50
4. Step 4: Simplify right side
   151,109.35x = 17,335,525,869.60
5. Step 5: Solve for x
   x = 17,335,525,869.60/151,109.35
6. Step 6: Final answer
   x = 114,721.73