Finding the Fourth Proportional to 78,076.96, 107,746.44 and 42,266.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,076.96 : 107,746.44 = 42,266.88 : x
2. Step 2: Convert to fraction form
   78,076.96/107,746.44 = 42,266.88/x
3. Step 3: Cross multiply
   78,076.96x = 107,746.44 × 42,266.88
4. Step 4: Simplify right side
   78,076.96x = 4,554,105,638.57
5. Step 5: Solve for x
   x = 4,554,105,638.57/78,076.96
6. Step 6: Final answer
   x = 58,328.42