Finding the Fourth Proportional to 78,118.02, 117,191.61 and 25,530.39

Step by Step Solution

1. Step 1: Write the proportion equation
   78,118.02 : 117,191.61 = 25,530.39 : x
2. Step 2: Convert to fraction form
   78,118.02/117,191.61 = 25,530.39/x
3. Step 3: Cross multiply
   78,118.02x = 117,191.61 × 25,530.39
4. Step 4: Simplify right side
   78,118.02x = 2,991,947,508.03
5. Step 5: Solve for x
   x = 2,991,947,508.03/78,118.02
6. Step 6: Final answer
   x = 38,300.35