Finding the Fourth Proportional to 58,786.08, 88,140.72 and 21,339.06

Step by Step Solution

1. Step 1: Write the proportion equation
   58,786.08 : 88,140.72 = 21,339.06 : x
2. Step 2: Convert to fraction form
   58,786.08/88,140.72 = 21,339.06/x
3. Step 3: Cross multiply
   58,786.08x = 88,140.72 × 21,339.06
4. Step 4: Simplify right side
   58,786.08x = 1,880,840,112.52
5. Step 5: Solve for x
   x = 1,880,840,112.52/58,786.08
6. Step 6: Final answer
   x = 31,994.65