Finding the Fourth Proportional to 42,018.66, 63,008.55 and 15,722.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,018.66 : 63,008.55 = 15,722.82 : x
2. Step 2: Convert to fraction form
   42,018.66/63,008.55 = 15,722.82/x
3. Step 3: Cross multiply
   42,018.66x = 63,008.55 × 15,722.82
4. Step 4: Simplify right side
   42,018.66x = 990,672,090.11
5. Step 5: Solve for x
   x = 990,672,090.11/42,018.66
6. Step 6: Final answer
   x = 23,576.96