Finding the Fourth Proportional to 145,109.39, 217,748.12 and 60,862.05

Step by Step Solution

1. Step 1: Write the proportion equation
   145,109.39 : 217,748.12 = 60,862.05 : x
2. Step 2: Convert to fraction form
   145,109.39/217,748.12 = 60,862.05/x
3. Step 3: Cross multiply
   145,109.39x = 217,748.12 × 60,862.05
4. Step 4: Simplify right side
   145,109.39x = 13,252,596,662.54
5. Step 5: Solve for x
   x = 13,252,596,662.54/145,109.39
6. Step 6: Final answer
   x = 91,328.32