Finding the Fourth Proportional to 31,074.76, 46,830.84 and 28,117.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,074.76 : 46,830.84 = 28,117.18 : x
2. Step 2: Convert to fraction form
   31,074.76/46,830.84 = 28,117.18/x
3. Step 3: Cross multiply
   31,074.76x = 46,830.84 × 28,117.18
4. Step 4: Simplify right side
   31,074.76x = 1,316,751,157.83
5. Step 5: Solve for x
   x = 1,316,751,157.83/31,074.76
6. Step 6: Final answer
   x = 42,373.65