Finding the Fourth Proportional to 151,131.30, 208,561.17 and 83,146.81

Step by Step Solution

1. Step 1: Write the proportion equation
   151,131.30 : 208,561.17 = 83,146.81 : x
2. Step 2: Convert to fraction form
   151,131.30/208,561.17 = 83,146.81/x
3. Step 3: Cross multiply
   151,131.30x = 208,561.17 × 83,146.81
4. Step 4: Simplify right side
   151,131.30x = 17,341,194,932.56
5. Step 5: Solve for x
   x = 17,341,194,932.56/151,131.30
6. Step 6: Final answer
   x = 114,742.58