Finding the Fourth Proportional to 52,776.72, 78,809.94 and 52,193.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,776.72 : 78,809.94 = 52,193.52 : x
2. Step 2: Convert to fraction form
   52,776.72/78,809.94 = 52,193.52/x
3. Step 3: Cross multiply
   52,776.72x = 78,809.94 × 52,193.52
4. Step 4: Simplify right side
   52,776.72x = 4,113,368,179.59
5. Step 5: Solve for x
   x = 4,113,368,179.59/52,776.72
6. Step 6: Final answer
   x = 77,939.06