Finding the Fourth Proportional to 81,146.75, 111,980.43 and 45,337.01

Step by Step Solution

1. Step 1: Write the proportion equation
   81,146.75 : 111,980.43 = 45,337.01 : x
2. Step 2: Convert to fraction form
   81,146.75/111,980.43 = 45,337.01/x
3. Step 3: Cross multiply
   81,146.75x = 111,980.43 × 45,337.01
4. Step 4: Simplify right side
   81,146.75x = 5,076,857,314.81
5. Step 5: Solve for x
   x = 5,076,857,314.81/81,146.75
6. Step 6: Final answer
   x = 62,563.91