Finding the Fourth Proportional to 145,841, 201,260.72 and 78,773

Step by Step Solution

1. Step 1: Write the proportion equation
   145,841 : 201,260.72 = 78,773 : x
2. Step 2: Convert to fraction form
   145,841/201,260.72 = 78,773/x
3. Step 3: Cross multiply
   145,841x = 201,260.72 × 78,773
4. Step 4: Simplify right side
   145,841x = 15,853,910,696.56
5. Step 5: Solve for x
   x = 15,853,910,696.56/145,841
6. Step 6: Final answer
   x = 108,706.82