Finding the Fourth Proportional to 303,436.62, 455,119.56 and 190,784.34

Step by Step Solution

1. Step 1: Write the proportion equation
   303,436.62 : 455,119.56 = 190,784.34 : x
2. Step 2: Convert to fraction form
   303,436.62/455,119.56 = 190,784.34/x
3. Step 3: Cross multiply
   303,436.62x = 455,119.56 × 190,784.34
4. Step 4: Simplify right side
   303,436.62x = 86,829,684,875.69
5. Step 5: Solve for x
   x = 86,829,684,875.69/303,436.62
6. Step 6: Final answer
   x = 286,154.27