Finding the Fourth Proportional to 151,436.73, 208,982.99 and 91,008.30

Step by Step Solution

1. Step 1: Write the proportion equation
   151,436.73 : 208,982.99 = 91,008.30 : x
2. Step 2: Convert to fraction form
   151,436.73/208,982.99 = 91,008.30/x
3. Step 3: Cross multiply
   151,436.73x = 208,982.99 × 91,008.30
4. Step 4: Simplify right side
   151,436.73x = 19,019,186,648.82
5. Step 5: Solve for x
   x = 19,019,186,648.82/151,436.73
6. Step 6: Final answer
   x = 125,591.64