Finding the Fourth Proportional to 52,066.88, 78,100.57 and 12,623.99

Step by Step Solution

1. Step 1: Write the proportion equation
   52,066.88 : 78,100.57 = 12,623.99 : x
2. Step 2: Convert to fraction form
   52,066.88/78,100.57 = 12,623.99/x
3. Step 3: Cross multiply
   52,066.88x = 78,100.57 × 12,623.99
4. Step 4: Simplify right side
   52,066.88x = 985,940,814.67
5. Step 5: Solve for x
   x = 985,940,814.67/52,066.88
6. Step 6: Final answer
   x = 18,936.05