Finding the Fourth Proportional to 78,237.82, 107,967.25 and 42,427.42

Step by Step Solution

1. Step 1: Write the proportion equation
   78,237.82 : 107,967.25 = 42,427.42 : x
2. Step 2: Convert to fraction form
   78,237.82/107,967.25 = 42,427.42/x
3. Step 3: Cross multiply
   78,237.82x = 107,967.25 × 42,427.42
4. Step 4: Simplify right side
   78,237.82x = 4,580,772,068.10
5. Step 5: Solve for x
   x = 4,580,772,068.10/78,237.82
6. Step 6: Final answer
   x = 58,549.33