Finding the Fourth Proportional to 52,627.86, 78,939.98 and 13,185.32

Step by Step Solution

1. Step 1: Write the proportion equation
   52,627.86 : 78,939.98 = 13,185.32 : x
2. Step 2: Convert to fraction form
   52,627.86/78,939.98 = 13,185.32/x
3. Step 3: Cross multiply
   52,627.86x = 78,939.98 × 13,185.32
4. Step 4: Simplify right side
   52,627.86x = 1,040,848,897.09
5. Step 5: Solve for x
   x = 1,040,848,897.09/52,627.86
6. Step 6: Final answer
   x = 19,777.53