Finding the Fourth Proportional to 42,401.52, 63,602.01 and 11,236.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,401.52 : 63,602.01 = 11,236.50 : x
2. Step 2: Convert to fraction form
   42,401.52/63,602.01 = 11,236.50/x
3. Step 3: Cross multiply
   42,401.52x = 63,602.01 × 11,236.50
4. Step 4: Simplify right side
   42,401.52x = 714,663,985.37
5. Step 5: Solve for x
   x = 714,663,985.37/42,401.52
6. Step 6: Final answer
   x = 16,854.68