Finding the Fourth Proportional to 308,553.45, 462,864.20 and 98,142.18

Step by Step Solution

1. Step 1: Write the proportion equation
   308,553.45 : 462,864.20 = 98,142.18 : x
2. Step 2: Convert to fraction form
   308,553.45/462,864.20 = 98,142.18/x
3. Step 3: Cross multiply
   308,553.45x = 462,864.20 × 98,142.18
4. Step 4: Simplify right side
   308,553.45x = 45,426,501,141.25
5. Step 5: Solve for x
   x = 45,426,501,141.25/308,553.45
6. Step 6: Final answer
   x = 147,224.09