Finding the Fourth Proportional to 61,305, 91,421.03 and 60,744.48

Step by Step Solution

1. Step 1: Write the proportion equation
   61,305 : 91,421.03 = 60,744.48 : x
2. Step 2: Convert to fraction form
   61,305/91,421.03 = 60,744.48/x
3. Step 3: Cross multiply
   61,305x = 91,421.03 × 60,744.48
4. Step 4: Simplify right side
   61,305x = 5,553,322,624.69
5. Step 5: Solve for x
   x = 5,553,322,624.69/61,305
6. Step 6: Final answer
   x = 90,585.15