Finding the Fourth Proportional to 78,237.33, 107,967.57 and 42,427.33

Step by Step Solution

1. Step 1: Write the proportion equation
   78,237.33 : 107,967.57 = 42,427.33 : x
2. Step 2: Convert to fraction form
   78,237.33/107,967.57 = 42,427.33/x
3. Step 3: Cross multiply
   78,237.33x = 107,967.57 × 42,427.33
4. Step 4: Simplify right side
   78,237.33x = 4,580,775,721.69
5. Step 5: Solve for x
   x = 4,580,775,721.69/78,237.33
6. Step 6: Final answer
   x = 58,549.75