Finding the Fourth Proportional to 51,813.51, 71,501.85 and 30,308.01

Step by Step Solution

1. Step 1: Write the proportion equation
   51,813.51 : 71,501.85 = 30,308.01 : x
2. Step 2: Convert to fraction form
   51,813.51/71,501.85 = 30,308.01/x
3. Step 3: Cross multiply
   51,813.51x = 71,501.85 × 30,308.01
4. Step 4: Simplify right side
   51,813.51x = 2,167,078,784.82
5. Step 5: Solve for x
   x = 2,167,078,784.82/51,813.51
6. Step 6: Final answer
   x = 41,824.59