Finding the Fourth Proportional to 74,818.58, 112,245.69 and 28,071.86

Step by Step Solution

1. Step 1: Write the proportion equation
   74,818.58 : 112,245.69 = 28,071.86 : x
2. Step 2: Convert to fraction form
   74,818.58/112,245.69 = 28,071.86/x
3. Step 3: Cross multiply
   74,818.58x = 112,245.69 × 28,071.86
4. Step 4: Simplify right side
   74,818.58x = 3,150,945,295.28
5. Step 5: Solve for x
   x = 3,150,945,295.28/74,818.58
6. Step 6: Final answer
   x = 42,114.48