Finding the Fourth Proportional to 52,451.74, 78,636.30 and 26,142.94

Step by Step Solution

1. Step 1: Write the proportion equation
   52,451.74 : 78,636.30 = 26,142.94 : x
2. Step 2: Convert to fraction form
   52,451.74/78,636.30 = 26,142.94/x
3. Step 3: Cross multiply
   52,451.74x = 78,636.30 × 26,142.94
4. Step 4: Simplify right side
   52,451.74x = 2,055,784,072.72
5. Step 5: Solve for x
   x = 2,055,784,072.72/52,451.74
6. Step 6: Final answer
   x = 39,193.82