Finding the Fourth Proportional to 47,111.25, 70,669.31 and 12,051.21

Step by Step Solution

1. Step 1: Write the proportion equation
   47,111.25 : 70,669.31 = 12,051.21 : x
2. Step 2: Convert to fraction form
   47,111.25/70,669.31 = 12,051.21/x
3. Step 3: Cross multiply
   47,111.25x = 70,669.31 × 12,051.21
4. Step 4: Simplify right side
   47,111.25x = 851,650,695.37
5. Step 5: Solve for x
   x = 851,650,695.37/47,111.25
6. Step 6: Final answer
   x = 18,077.44