Finding the Fourth Proportional to 74,321.12, 102,559.56 and 42,493.52

Step by Step Solution

1. Step 1: Write the proportion equation
   74,321.12 : 102,559.56 = 42,493.52 : x
2. Step 2: Convert to fraction form
   74,321.12/102,559.56 = 42,493.52/x
3. Step 3: Cross multiply
   74,321.12x = 102,559.56 × 42,493.52
4. Step 4: Simplify right side
   74,321.12x = 4,358,116,714.05
5. Step 5: Solve for x
   x = 4,358,116,714.05/74,321.12
6. Step 6: Final answer
   x = 58,639.01