Finding the Fourth Proportional to 42,875.25, 64,317.33 and 11,710.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,875.25 : 64,317.33 = 11,710.50 : x
2. Step 2: Convert to fraction form
   42,875.25/64,317.33 = 11,710.50/x
3. Step 3: Cross multiply
   42,875.25x = 64,317.33 × 11,710.50
4. Step 4: Simplify right side
   42,875.25x = 753,188,092.97
5. Step 5: Solve for x
   x = 753,188,092.97/42,875.25
6. Step 6: Final answer
   x = 17,566.97