Finding the Fourth Proportional to 48,171.69, 72,251.16 and 21,870.39

Step by Step Solution

1. Step 1: Write the proportion equation
   48,171.69 : 72,251.16 = 21,870.39 : x
2. Step 2: Convert to fraction form
   48,171.69/72,251.16 = 21,870.39/x
3. Step 3: Cross multiply
   48,171.69x = 72,251.16 × 21,870.39
4. Step 4: Simplify right side
   48,171.69x = 1,580,161,047.15
5. Step 5: Solve for x
   x = 1,580,161,047.15/48,171.69
6. Step 6: Final answer
   x = 32,802.69