Finding the Fourth Proportional to 42,861.36, 64,302.30 and 17,887.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,861.36 : 64,302.30 = 17,887.52 : x
2. Step 2: Convert to fraction form
   42,861.36/64,302.30 = 17,887.52/x
3. Step 3: Cross multiply
   42,861.36x = 64,302.30 × 17,887.52
4. Step 4: Simplify right side
   42,861.36x = 1,150,208,677.30
5. Step 5: Solve for x
   x = 1,150,208,677.30/42,861.36
6. Step 6: Final answer
   x = 26,835.56