Finding the Fourth Proportional to 42,896.25, 64,348.83 and 11,731.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,896.25 : 64,348.83 = 11,731.50 : x
2. Step 2: Convert to fraction form
   42,896.25/64,348.83 = 11,731.50/x
3. Step 3: Cross multiply
   42,896.25x = 64,348.83 × 11,731.50
4. Step 4: Simplify right side
   42,896.25x = 754,908,299.15
5. Step 5: Solve for x
   x = 754,908,299.15/42,896.25
6. Step 6: Final answer
   x = 17,598.47