Finding the Fourth Proportional to 72,686.07, 109,071.40 and 30,563.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,686.07 : 109,071.40 = 30,563.10 : x
2. Step 2: Convert to fraction form
   72,686.07/109,071.40 = 30,563.10/x
3. Step 3: Cross multiply
   72,686.07x = 109,071.40 × 30,563.10
4. Step 4: Simplify right side
   72,686.07x = 3,333,560,105.34
5. Step 5: Solve for x
   x = 3,333,560,105.34/72,686.07
6. Step 6: Final answer
   x = 45,862.43