Finding the Fourth Proportional to 58,736.68, 81,056.69 and 31,879.18

Step by Step Solution

1. Step 1: Write the proportion equation
   58,736.68 : 81,056.69 = 31,879.18 : x
2. Step 2: Convert to fraction form
   58,736.68/81,056.69 = 31,879.18/x
3. Step 3: Cross multiply
   58,736.68x = 81,056.69 × 31,879.18
4. Step 4: Simplify right side
   58,736.68x = 2,584,020,810.71
5. Step 5: Solve for x
   x = 2,584,020,810.71/58,736.68
6. Step 6: Final answer
   x = 43,993.31