Finding the Fourth Proportional to 58,748.43, 81,072.57 and 31,890.72

Step by Step Solution

1. Step 1: Write the proportion equation
   58,748.43 : 81,072.57 = 31,890.72 : x
2. Step 2: Convert to fraction form
   58,748.43/81,072.57 = 31,890.72/x
3. Step 3: Cross multiply
   58,748.43x = 81,072.57 × 31,890.72
4. Step 4: Simplify right side
   58,748.43x = 2,585,462,629.55
5. Step 5: Solve for x
   x = 2,585,462,629.55/58,748.43
6. Step 6: Final answer
   x = 44,009.05