Finding the Fourth Proportional to 52,682.77, 78,940.92 and 42,773.63

Step by Step Solution

1. Step 1: Write the proportion equation
   52,682.77 : 78,940.92 = 42,773.63 : x
2. Step 2: Convert to fraction form
   52,682.77/78,940.92 = 42,773.63/x
3. Step 3: Cross multiply
   52,682.77x = 78,940.92 × 42,773.63
4. Step 4: Simplify right side
   52,682.77x = 3,376,590,061.69
5. Step 5: Solve for x
   x = 3,376,590,061.69/52,682.77
6. Step 6: Final answer
   x = 64,092.88