Finding the Fourth Proportional to 48,632.69, 72,956.81 and 20,553.01

Step by Step Solution

1. Step 1: Write the proportion equation
   48,632.69 : 72,956.81 = 20,553.01 : x
2. Step 2: Convert to fraction form
   48,632.69/72,956.81 = 20,553.01/x
3. Step 3: Cross multiply
   48,632.69x = 72,956.81 × 20,553.01
4. Step 4: Simplify right side
   48,632.69x = 1,499,482,045.50
5. Step 5: Solve for x
   x = 1,499,482,045.50/48,632.69
6. Step 6: Final answer
   x = 30,832.80