Finding the Fourth Proportional to 52,648.18, 78,972.39 and 26,326.42

Step by Step Solution

1. Step 1: Write the proportion equation
   52,648.18 : 78,972.39 = 26,326.42 : x
2. Step 2: Convert to fraction form
   52,648.18/78,972.39 = 26,326.42/x
3. Step 3: Cross multiply
   52,648.18x = 78,972.39 × 26,326.42
4. Step 4: Simplify right side
   52,648.18x = 2,079,060,307.54
5. Step 5: Solve for x
   x = 2,079,060,307.54/52,648.18
6. Step 6: Final answer
   x = 39,489.69