Finding the Fourth Proportional to 78,076.94, 107,746.16 and 42,266.93

Step by Step Solution

1. Step 1: Write the proportion equation
   78,076.94 : 107,746.16 = 42,266.93 : x
2. Step 2: Convert to fraction form
   78,076.94/107,746.16 = 42,266.93/x
3. Step 3: Cross multiply
   78,076.94x = 107,746.16 × 42,266.93
4. Step 4: Simplify right side
   78,076.94x = 4,554,098,969.43
5. Step 5: Solve for x
   x = 4,554,098,969.43/78,076.94
6. Step 6: Final answer
   x = 58,328.35