Finding the Fourth Proportional to 74,919.17, 103,364.47 and 53,412.42

Step by Step Solution

1. Step 1: Write the proportion equation
   74,919.17 : 103,364.47 = 53,412.42 : x
2. Step 2: Convert to fraction form
   74,919.17/103,364.47 = 53,412.42/x
3. Step 3: Cross multiply
   74,919.17x = 103,364.47 × 53,412.42
4. Step 4: Simplify right side
   74,919.17x = 5,520,945,700.83
5. Step 5: Solve for x
   x = 5,520,945,700.83/74,919.17
6. Step 6: Final answer
   x = 73,692.03