Finding the Fourth Proportional to 91,830.78, 137,728.04 and 25,253.73

Step by Step Solution

1. Step 1: Write the proportion equation
   91,830.78 : 137,728.04 = 25,253.73 : x
2. Step 2: Convert to fraction form
   91,830.78/137,728.04 = 25,253.73/x
3. Step 3: Cross multiply
   91,830.78x = 137,728.04 × 25,253.73
4. Step 4: Simplify right side
   91,830.78x = 3,478,146,609.32
5. Step 5: Solve for x
   x = 3,478,146,609.32/91,830.78
6. Step 6: Final answer
   x = 37,875.61