Finding the Fourth Proportional to 58,870.52, 81,242.12 and 33,720

Step by Step Solution

1. Step 1: Write the proportion equation
   58,870.52 : 81,242.12 = 33,720 : x
2. Step 2: Convert to fraction form
   58,870.52/81,242.12 = 33,720/x
3. Step 3: Cross multiply
   58,870.52x = 81,242.12 × 33,720
4. Step 4: Simplify right side
   58,870.52x = 2,739,484,286.40
5. Step 5: Solve for x
   x = 2,739,484,286.40/58,870.52
6. Step 6: Final answer
   x = 46,534.06