Finding the Fourth Proportional to 51,293.06, 70,790.43 and 42,664.02

Step by Step Solution

1. Step 1: Write the proportion equation
   51,293.06 : 70,790.43 = 42,664.02 : x
2. Step 2: Convert to fraction form
   51,293.06/70,790.43 = 42,664.02/x
3. Step 3: Cross multiply
   51,293.06x = 70,790.43 × 42,664.02
4. Step 4: Simplify right side
   51,293.06x = 3,020,204,614.05
5. Step 5: Solve for x
   x = 3,020,204,614.05/51,293.06
6. Step 6: Final answer
   x = 58,881.34