Finding the Fourth Proportional to 145,111.89, 217,751.87 and 60,864.55

Step by Step Solution

1. Step 1: Write the proportion equation
   145,111.89 : 217,751.87 = 60,864.55 : x
2. Step 2: Convert to fraction form
   145,111.89/217,751.87 = 60,864.55/x
3. Step 3: Cross multiply
   145,111.89x = 217,751.87 × 60,864.55
4. Step 4: Simplify right side
   145,111.89x = 13,253,369,579.21
5. Step 5: Solve for x
   x = 13,253,369,579.21/145,111.89
6. Step 6: Final answer
   x = 91,332.07