Finding the Fourth Proportional to 178,245, 245,939.72 and 105,670.80

Step by Step Solution

1. Step 1: Write the proportion equation
   178,245 : 245,939.72 = 105,670.80 : x
2. Step 2: Convert to fraction form
   178,245/245,939.72 = 105,670.80/x
3. Step 3: Cross multiply
   178,245x = 245,939.72 × 105,670.80
4. Step 4: Simplify right side
   178,245x = 25,988,646,435.82
5. Step 5: Solve for x
   x = 25,988,646,435.82/178,245
6. Step 6: Final answer
   x = 145,802.95