Finding the Fourth Proportional to 42,748.29, 64,056.83 and 26,083.35

Step by Step Solution

1. Step 1: Write the proportion equation
   42,748.29 : 64,056.83 = 26,083.35 : x
2. Step 2: Convert to fraction form
   42,748.29/64,056.83 = 26,083.35/x
3. Step 3: Cross multiply
   42,748.29x = 64,056.83 × 26,083.35
4. Step 4: Simplify right side
   42,748.29x = 1,670,816,586.36
5. Step 5: Solve for x
   x = 1,670,816,586.36/42,748.29
6. Step 6: Final answer
   x = 39,084.99