Finding the Fourth Proportional to 52,066.38, 78,099.82 and 12,623.49

Step by Step Solution

1. Step 1: Write the proportion equation
   52,066.38 : 78,099.82 = 12,623.49 : x
2. Step 2: Convert to fraction form
   52,066.38/78,099.82 = 12,623.49/x
3. Step 3: Cross multiply
   52,066.38x = 78,099.82 × 12,623.49
4. Step 4: Simplify right side
   52,066.38x = 985,892,296.77
5. Step 5: Solve for x
   x = 985,892,296.77/52,066.38
6. Step 6: Final answer
   x = 18,935.30