Finding the Fourth Proportional to 53,066.30, 73,229.96 and 28,866.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,066.30 : 73,229.96 = 28,866.50 : x
2. Step 2: Convert to fraction form
   53,066.30/73,229.96 = 28,866.50/x
3. Step 3: Cross multiply
   53,066.30x = 73,229.96 × 28,866.50
4. Step 4: Simplify right side
   53,066.30x = 2,113,892,640.34
5. Step 5: Solve for x
   x = 2,113,892,640.34/53,066.30
6. Step 6: Final answer
   x = 39,834.94