Finding the Fourth Proportional to 49,012.30, 72,964.17 and 48,720.70

Step by Step Solution

1. Step 1: Write the proportion equation
   49,012.30 : 72,964.17 = 48,720.70 : x
2. Step 2: Convert to fraction form
   49,012.30/72,964.17 = 48,720.70/x
3. Step 3: Cross multiply
   49,012.30x = 72,964.17 × 48,720.70
4. Step 4: Simplify right side
   49,012.30x = 3,554,865,437.32
5. Step 5: Solve for x
   x = 3,554,865,437.32/49,012.30
6. Step 6: Final answer
   x = 72,530.07