Finding the Fourth Proportional to 42,938.67, 59,228.10 and 31,019.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,938.67 : 59,228.10 = 31,019.52 : x
2. Step 2: Convert to fraction form
   42,938.67/59,228.10 = 31,019.52/x
3. Step 3: Cross multiply
   42,938.67x = 59,228.10 × 31,019.52
4. Step 4: Simplify right side
   42,938.67x = 1,837,227,232.51
5. Step 5: Solve for x
   x = 1,837,227,232.51/42,938.67
6. Step 6: Final answer
   x = 42,787.24