Finding the Fourth Proportional to 151,900.67, 209,618.87 and 83,906.69

Step by Step Solution

1. Step 1: Write the proportion equation
   151,900.67 : 209,618.87 = 83,906.69 : x
2. Step 2: Convert to fraction form
   151,900.67/209,618.87 = 83,906.69/x
3. Step 3: Cross multiply
   151,900.67x = 209,618.87 × 83,906.69
4. Step 4: Simplify right side
   151,900.67x = 17,588,424,075.61
5. Step 5: Solve for x
   x = 17,588,424,075.61/151,900.67
6. Step 6: Final answer
   x = 115,788.99