Finding the Fourth Proportional to 151,290.68, 208,779.27 and 83,306.21

Step by Step Solution

1. Step 1: Write the proportion equation
   151,290.68 : 208,779.27 = 83,306.21 : x
2. Step 2: Convert to fraction form
   151,290.68/208,779.27 = 83,306.21/x
3. Step 3: Cross multiply
   151,290.68x = 208,779.27 × 83,306.21
4. Step 4: Simplify right side
   151,290.68x = 17,392,609,710.27
5. Step 5: Solve for x
   x = 17,392,609,710.27/151,290.68
6. Step 6: Final answer
   x = 114,961.54