Finding the Fourth Proportional to 58,788.36, 81,128.52 and 31,931.10

Step by Step Solution

1. Step 1: Write the proportion equation
   58,788.36 : 81,128.52 = 31,931.10 : x
2. Step 2: Convert to fraction form
   58,788.36/81,128.52 = 31,931.10/x
3. Step 3: Cross multiply
   58,788.36x = 81,128.52 × 31,931.10
4. Step 4: Simplify right side
   58,788.36x = 2,590,522,884.97
5. Step 5: Solve for x
   x = 2,590,522,884.97/58,788.36
6. Step 6: Final answer
   x = 44,065.23