Finding the Fourth Proportional to 151,510.66, 209,086.16 and 83,530.12

Step by Step Solution

1. Step 1: Write the proportion equation
   151,510.66 : 209,086.16 = 83,530.12 : x
2. Step 2: Convert to fraction form
   151,510.66/209,086.16 = 83,530.12/x
3. Step 3: Cross multiply
   151,510.66x = 209,086.16 × 83,530.12
4. Step 4: Simplify right side
   151,510.66x = 17,464,992,035.14
5. Step 5: Solve for x
   x = 17,464,992,035.14/151,510.66
6. Step 6: Final answer
   x = 115,272.36