Finding the Fourth Proportional to 145,503.54, 200,819.61 and 107,460.72

Step by Step Solution

1. Step 1: Write the proportion equation
   145,503.54 : 200,819.61 = 107,460.72 : x
2. Step 2: Convert to fraction form
   145,503.54/200,819.61 = 107,460.72/x
3. Step 3: Cross multiply
   145,503.54x = 200,819.61 × 107,460.72
4. Step 4: Simplify right side
   145,503.54x = 21,580,219,880.72
5. Step 5: Solve for x
   x = 21,580,219,880.72/145,503.54
6. Step 6: Final answer
   x = 148,314.05