Finding the Fourth Proportional to 51,139.31, 70,555.33 and 29,903.54

Step by Step Solution

1. Step 1: Write the proportion equation
   51,139.31 : 70,555.33 = 29,903.54 : x
2. Step 2: Convert to fraction form
   51,139.31/70,555.33 = 29,903.54/x
3. Step 3: Cross multiply
   51,139.31x = 70,555.33 × 29,903.54
4. Step 4: Simplify right side
   51,139.31x = 2,109,854,132.87
5. Step 5: Solve for x
   x = 2,109,854,132.87/51,139.31
6. Step 6: Final answer
   x = 41,256.99