Finding the Fourth Proportional to 151,390.03, 208,917.27 and 83,405.43

Step by Step Solution

1. Step 1: Write the proportion equation
   151,390.03 : 208,917.27 = 83,405.43 : x
2. Step 2: Convert to fraction form
   151,390.03/208,917.27 = 83,405.43/x
3. Step 3: Cross multiply
   151,390.03x = 208,917.27 × 83,405.43
4. Step 4: Simplify right side
   151,390.03x = 17,424,834,738.78
5. Step 5: Solve for x
   x = 17,424,834,738.78/151,390.03
6. Step 6: Final answer
   x = 115,098.96