Finding the Fourth Proportional to 42,156.79, 63,233.64 and 10,567.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,156.79 : 63,233.64 = 10,567.08 : x
2. Step 2: Convert to fraction form
   42,156.79/63,233.64 = 10,567.08/x
3. Step 3: Cross multiply
   42,156.79x = 63,233.64 × 10,567.08
4. Step 4: Simplify right side
   42,156.79x = 668,194,932.57
5. Step 5: Solve for x
   x = 668,194,932.57/42,156.79
6. Step 6: Final answer
   x = 15,850.23