Finding the Fourth Proportional to 78,316.16, 108,076.41 and 42,506.17

Step by Step Solution

1. Step 1: Write the proportion equation
   78,316.16 : 108,076.41 = 42,506.17 : x
2. Step 2: Convert to fraction form
   78,316.16/108,076.41 = 42,506.17/x
3. Step 3: Cross multiply
   78,316.16x = 108,076.41 × 42,506.17
4. Step 4: Simplify right side
   78,316.16x = 4,593,914,256.45
5. Step 5: Solve for x
   x = 4,593,914,256.45/78,316.16
6. Step 6: Final answer
   x = 58,658.57