Finding the Fourth Proportional to 283,196.96, 390,803.64 and 155,869.82

Step by Step Solution

1. Step 1: Write the proportion equation
   283,196.96 : 390,803.64 = 155,869.82 : x
2. Step 2: Convert to fraction form
   283,196.96/390,803.64 = 155,869.82/x
3. Step 3: Cross multiply
   283,196.96x = 390,803.64 × 155,869.82
4. Step 4: Simplify right side
   283,196.96x = 60,914,493,022.14
5. Step 5: Solve for x
   x = 60,914,493,022.14/283,196.96
6. Step 6: Final answer
   x = 215,095.86