Finding the Fourth Proportional to 145,153, 217,573.98 and 60,891.94

Step by Step Solution

1. Step 1: Write the proportion equation
   145,153 : 217,573.98 = 60,891.94 : x
2. Step 2: Convert to fraction form
   145,153/217,573.98 = 60,891.94/x
3. Step 3: Cross multiply
   145,153x = 217,573.98 × 60,891.94
4. Step 4: Simplify right side
   145,153x = 13,248,501,735.72
5. Step 5: Solve for x
   x = 13,248,501,735.72/145,153
6. Step 6: Final answer
   x = 91,272.67