Finding the Fourth Proportional to 78,697.25, 108,602.22 and 42,887.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78,697.25 : 108,602.22 = 42,887.27 : x
2. Step 2: Convert to fraction form
   78,697.25/108,602.22 = 42,887.27/x
3. Step 3: Cross multiply
   78,697.25x = 108,602.22 × 42,887.27
4. Step 4: Simplify right side
   78,697.25x = 4,657,652,188.73
5. Step 5: Solve for x
   x = 4,657,652,188.73/78,697.25
6. Step 6: Final answer
   x = 59,184.44