Finding the Fourth Proportional to 42,861.18, 64,302.03 and 17,887.33

Step by Step Solution

1. Step 1: Write the proportion equation
   42,861.18 : 64,302.03 = 17,887.33 : x
2. Step 2: Convert to fraction form
   42,861.18/64,302.03 = 17,887.33/x
3. Step 3: Cross multiply
   42,861.18x = 64,302.03 × 17,887.33
4. Step 4: Simplify right side
   42,861.18x = 1,150,191,665.94
5. Step 5: Solve for x
   x = 1,150,191,665.94/42,861.18
6. Step 6: Final answer
   x = 26,835.28