Finding the Fourth Proportional to 78,741.10, 118,123.54 and 25,415.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,741.10 : 118,123.54 = 25,415.25 : x
2. Step 2: Convert to fraction form
   78,741.10/118,123.54 = 25,415.25/x
3. Step 3: Cross multiply
   78,741.10x = 118,123.54 × 25,415.25
4. Step 4: Simplify right side
   78,741.10x = 3,002,139,299.99
5. Step 5: Solve for x
   x = 3,002,139,299.99/78,741.10
6. Step 6: Final answer
   x = 38,126.71