Finding the Fourth Proportional to 151,088.83, 208,498.17 and 83,105.78

Step by Step Solution

1. Step 1: Write the proportion equation
   151,088.83 : 208,498.17 = 83,105.78 : x
2. Step 2: Convert to fraction form
   151,088.83/208,498.17 = 83,105.78/x
3. Step 3: Cross multiply
   151,088.83x = 208,498.17 × 83,105.78
4. Step 4: Simplify right side
   151,088.83x = 17,327,403,567.67
5. Step 5: Solve for x
   x = 17,327,403,567.67/151,088.83
6. Step 6: Final answer
   x = 114,683.55