Finding the Fourth Proportional to 58,870.50, 81,242.10 and 33,720

Step by Step Solution

1. Step 1: Write the proportion equation
   58,870.50 : 81,242.10 = 33,720 : x
2. Step 2: Convert to fraction form
   58,870.50/81,242.10 = 33,720/x
3. Step 3: Cross multiply
   58,870.50x = 81,242.10 × 33,720
4. Step 4: Simplify right side
   58,870.50x = 2,739,483,612
5. Step 5: Solve for x
   x = 2,739,483,612/58,870.50
6. Step 6: Final answer
   x = 46,534.06