Finding the Fourth Proportional to 42,876.23, 64,314.37 and 17,902.67

Step by Step Solution

1. Step 1: Write the proportion equation
   42,876.23 : 64,314.37 = 17,902.67 : x
2. Step 2: Convert to fraction form
   42,876.23/64,314.37 = 17,902.67/x
3. Step 3: Cross multiply
   42,876.23x = 64,314.37 × 17,902.67
4. Step 4: Simplify right side
   42,876.23x = 1,151,398,576.04
5. Step 5: Solve for x
   x = 1,151,398,576.04/42,876.23
6. Step 6: Final answer
   x = 26,854.01