Finding the Fourth Proportional to 105,133.27, 145,062.25 and 60,412.63

Step by Step Solution

1. Step 1: Write the proportion equation
   105,133.27 : 145,062.25 = 60,412.63 : x
2. Step 2: Convert to fraction form
   105,133.27/145,062.25 = 60,412.63/x
3. Step 3: Cross multiply
   105,133.27x = 145,062.25 × 60,412.63
4. Step 4: Simplify right side
   105,133.27x = 8,763,592,036.22
5. Step 5: Solve for x
   x = 8,763,592,036.22/105,133.27
6. Step 6: Final answer
   x = 83,356.98