Finding the Fourth Proportional to 42,258.18, 63,388.74 and 20,060.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,258.18 : 63,388.74 = 20,060.12 : x
2. Step 2: Convert to fraction form
   42,258.18/63,388.74 = 20,060.12/x
3. Step 3: Cross multiply
   42,258.18x = 63,388.74 × 20,060.12
4. Step 4: Simplify right side
   42,258.18x = 1,271,585,731.05
5. Step 5: Solve for x
   x = 1,271,585,731.05/42,258.18
6. Step 6: Final answer
   x = 30,090.88