Finding the Fourth Proportional to 52,066.91, 78,101.33 and 18,789.47

Step by Step Solution

1. Step 1: Write the proportion equation
   52,066.91 : 78,101.33 = 18,789.47 : x
2. Step 2: Convert to fraction form
   52,066.91/78,101.33 = 18,789.47/x
3. Step 3: Cross multiply
   52,066.91x = 78,101.33 × 18,789.47
4. Step 4: Simplify right side
   52,066.91x = 1,467,482,503.05
5. Step 5: Solve for x
   x = 1,467,482,503.05/52,066.91
6. Step 6: Final answer
   x = 28,184.55