Finding the Fourth Proportional to 78,043.59, 117,077.58 and 25,440.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,043.59 : 117,077.58 = 25,440.84 : x
2. Step 2: Convert to fraction form
   78,043.59/117,077.58 = 25,440.84/x
3. Step 3: Cross multiply
   78,043.59x = 117,077.58 × 25,440.84
4. Step 4: Simplify right side
   78,043.59x = 2,978,551,980.37
5. Step 5: Solve for x
   x = 2,978,551,980.37/78,043.59
6. Step 6: Final answer
   x = 38,165.24