Finding the Fourth Proportional to 78,113.56, 107,796.13 and 42,302.74

Step by Step Solution

1. Step 1: Write the proportion equation
   78,113.56 : 107,796.13 = 42,302.74 : x
2. Step 2: Convert to fraction form
   78,113.56/107,796.13 = 42,302.74/x
3. Step 3: Cross multiply
   78,113.56x = 107,796.13 × 42,302.74
4. Step 4: Simplify right side
   78,113.56x = 4,560,071,660.40
5. Step 5: Solve for x
   x = 4,560,071,660.40/78,113.56
6. Step 6: Final answer
   x = 58,377.47