Finding the Fourth Proportional to 91,929.47, 137,902.15 and 25,369.61

Step by Step Solution

1. Step 1: Write the proportion equation
   91,929.47 : 137,902.15 = 25,369.61 : x
2. Step 2: Convert to fraction form
   91,929.47/137,902.15 = 25,369.61/x
3. Step 3: Cross multiply
   91,929.47x = 137,902.15 × 25,369.61
4. Step 4: Simplify right side
   91,929.47x = 3,498,523,105.86
5. Step 5: Solve for x
   x = 3,498,523,105.86/91,929.47
6. Step 6: Final answer
   x = 38,056.60