Finding the Fourth Proportional to 151,364.49, 208,899.40 and 83,388.43

Step by Step Solution

1. Step 1: Write the proportion equation
   151,364.49 : 208,899.40 = 83,388.43 : x
2. Step 2: Convert to fraction form
   151,364.49/208,899.40 = 83,388.43/x
3. Step 3: Cross multiply
   151,364.49x = 208,899.40 × 83,388.43
4. Step 4: Simplify right side
   151,364.49x = 17,419,792,027.89
5. Step 5: Solve for x
   x = 17,419,792,027.89/151,364.49
6. Step 6: Final answer
   x = 115,085.07