Finding the Fourth Proportional to 25,148.37, 34,705.50 and 13,818.57

Step by Step Solution

1. Step 1: Write the proportion equation
   25,148.37 : 34,705.50 = 13,818.57 : x
2. Step 2: Convert to fraction form
   25,148.37/34,705.50 = 13,818.57/x
3. Step 3: Cross multiply
   25,148.37x = 34,705.50 × 13,818.57
4. Step 4: Simplify right side
   25,148.37x = 479,580,312.04
5. Step 5: Solve for x
   x = 479,580,312.04/25,148.37
6. Step 6: Final answer
   x = 19,070.04