Finding the Fourth Proportional to 78,057.63, 107,720.32 and 42,248.41

Step by Step Solution

1. Step 1: Write the proportion equation
   78,057.63 : 107,720.32 = 42,248.41 : x
2. Step 2: Convert to fraction form
   78,057.63/107,720.32 = 42,248.41/x
3. Step 3: Cross multiply
   78,057.63x = 107,720.32 × 42,248.41
4. Step 4: Simplify right side
   78,057.63x = 4,551,012,244.69
5. Step 5: Solve for x
   x = 4,551,012,244.69/78,057.63
6. Step 6: Final answer
   x = 58,303.23