Finding the Fourth Proportional to 42,457, 63,237.01 and 40,236.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,457 : 63,237.01 = 40,236.52 : x
2. Step 2: Convert to fraction form
   42,457/63,237.01 = 40,236.52/x
3. Step 3: Cross multiply
   42,457x = 63,237.01 × 40,236.52
4. Step 4: Simplify right side
   42,457x = 2,544,437,217.61
5. Step 5: Solve for x
   x = 2,544,437,217.61/42,457
6. Step 6: Final answer
   x = 59,929.75