Finding the Fourth Proportional to 151,139.32, 208,573.86 and 83,157.19

Step by Step Solution

1. Step 1: Write the proportion equation
   151,139.32 : 208,573.86 = 83,157.19 : x
2. Step 2: Convert to fraction form
   151,139.32/208,573.86 = 83,157.19/x
3. Step 3: Cross multiply
   151,139.32x = 208,573.86 × 83,157.19
4. Step 4: Simplify right side
   151,139.32x = 17,344,416,105.05
5. Step 5: Solve for x
   x = 17,344,416,105.05/151,139.32
6. Step 6: Final answer
   x = 114,757.80