Finding the Fourth Proportional to 78,715.01, 108,625.61 and 42,905.16

Step by Step Solution

1. Step 1: Write the proportion equation
   78,715.01 : 108,625.61 = 42,905.16 : x
2. Step 2: Convert to fraction form
   78,715.01/108,625.61 = 42,905.16/x
3. Step 3: Cross multiply
   78,715.01x = 108,625.61 × 42,905.16
4. Step 4: Simplify right side
   78,715.01x = 4,660,599,043.07
5. Step 5: Solve for x
   x = 4,660,599,043.07/78,715.01
6. Step 6: Final answer
   x = 59,208.52