Finding the Fourth Proportional to 456,047.42, 684,168.93 and 136,224.45

Step by Step Solution

1. Step 1: Write the proportion equation
   456,047.42 : 684,168.93 = 136,224.45 : x
2. Step 2: Convert to fraction form
   456,047.42/684,168.93 = 136,224.45/x
3. Step 3: Cross multiply
   456,047.42x = 684,168.93 × 136,224.45
4. Step 4: Simplify right side
   456,047.42x = 93,200,536,196.34
5. Step 5: Solve for x
   x = 93,200,536,196.34/456,047.42
6. Step 6: Final answer
   x = 204,365.89