Finding the Fourth Proportional to 94,213.78, 141,290.42 and 31,019.20

Step by Step Solution

1. Step 1: Write the proportion equation
   94,213.78 : 141,290.42 = 31,019.20 : x
2. Step 2: Convert to fraction form
   94,213.78/141,290.42 = 31,019.20/x
3. Step 3: Cross multiply
   94,213.78x = 141,290.42 × 31,019.20
4. Step 4: Simplify right side
   94,213.78x = 4,382,715,796.06
5. Step 5: Solve for x
   x = 4,382,715,796.06/94,213.78
6. Step 6: Final answer
   x = 46,518.84