Finding the Fourth Proportional to 42,662.79, 64,003.52 and 13,082.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42,662.79 : 64,003.52 = 13,082.94 : x
2. Step 2: Convert to fraction form
   42,662.79/64,003.52 = 13,082.94/x
3. Step 3: Cross multiply
   42,662.79x = 64,003.52 × 13,082.94
4. Step 4: Simplify right side
   42,662.79x = 837,354,211.95
5. Step 5: Solve for x
   x = 837,354,211.95/42,662.79
6. Step 6: Final answer
   x = 19,627.27