Finding the Fourth Proportional to 42,152.34, 63,236.70 and 12,569.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,152.34 : 63,236.70 = 12,569.52 : x
2. Step 2: Convert to fraction form
   42,152.34/63,236.70 = 12,569.52/x
3. Step 3: Cross multiply
   42,152.34x = 63,236.70 × 12,569.52
4. Step 4: Simplify right side
   42,152.34x = 794,854,965.38
5. Step 5: Solve for x
   x = 794,854,965.38/42,152.34
6. Step 6: Final answer
   x = 18,856.72