Finding the Fourth Proportional to 78,029.34, 117,056.16 and 25,426.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,029.34 : 117,056.16 = 25,426.62 : x
2. Step 2: Convert to fraction form
   78,029.34/117,056.16 = 25,426.62/x
3. Step 3: Cross multiply
   78,029.34x = 117,056.16 × 25,426.62
4. Step 4: Simplify right side
   78,029.34x = 2,976,342,498.98
5. Step 5: Solve for x
   x = 2,976,342,498.98/78,029.34
6. Step 6: Final answer
   x = 38,143.89