Finding the Fourth Proportional to 78,017.47, 117,038.35 and 25,414.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,017.47 : 117,038.35 = 25,414.72 : x
2. Step 2: Convert to fraction form
   78,017.47/117,038.35 = 25,414.72/x
3. Step 3: Cross multiply
   78,017.47x = 117,038.35 × 25,414.72
4. Step 4: Simplify right side
   78,017.47x = 2,974,496,894.51
5. Step 5: Solve for x
   x = 2,974,496,894.51/78,017.47
6. Step 6: Final answer
   x = 38,126.04