Finding the Fourth Proportional to 42,798.06, 64,219.47 and 17,516.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,798.06 : 64,219.47 = 17,516.34 : x
2. Step 2: Convert to fraction form
   42,798.06/64,219.47 = 17,516.34/x
3. Step 3: Cross multiply
   42,798.06x = 64,219.47 × 17,516.34
4. Step 4: Simplify right side
   42,798.06x = 1,124,890,005.45
5. Step 5: Solve for x
   x = 1,124,890,005.45/42,798.06
6. Step 6: Final answer
   x = 26,283.67