Finding the Fourth Proportional to 93,871, 129,542.06 and 51,429.72

Step by Step Solution

1. Step 1: Write the proportion equation
   93,871 : 129,542.06 = 51,429.72 : x
2. Step 2: Convert to fraction form
   93,871/129,542.06 = 51,429.72/x
3. Step 3: Cross multiply
   93,871x = 129,542.06 × 51,429.72
4. Step 4: Simplify right side
   93,871x = 6,662,311,874.02
5. Step 5: Solve for x
   x = 6,662,311,874.02/93,871
6. Step 6: Final answer
   x = 70,973.06