Finding the Fourth Proportional to 42,333.12, 63,374.76 and 31,289.22

Step by Step Solution

1. Step 1: Write the proportion equation
   42,333.12 : 63,374.76 = 31,289.22 : x
2. Step 2: Convert to fraction form
   42,333.12/63,374.76 = 31,289.22/x
3. Step 3: Cross multiply
   42,333.12x = 63,374.76 × 31,289.22
4. Step 4: Simplify right side
   42,333.12x = 1,982,946,808.09
5. Step 5: Solve for x
   x = 1,982,946,808.09/42,333.12
6. Step 6: Final answer
   x = 46,841.50