Finding the Fourth Proportional to 58,786.30, 81,124.77 and 31,928.59

Step by Step Solution

1. Step 1: Write the proportion equation
   58,786.30 : 81,124.77 = 31,928.59 : x
2. Step 2: Convert to fraction form
   58,786.30/81,124.77 = 31,928.59/x
3. Step 3: Cross multiply
   58,786.30x = 81,124.77 × 31,928.59
4. Step 4: Simplify right side
   58,786.30x = 2,590,199,520.17
5. Step 5: Solve for x
   x = 2,590,199,520.17/58,786.30
6. Step 6: Final answer
   x = 44,061.28