Finding the Fourth Proportional to 53,200.70, 73,417.89 and 30,542.06

Step by Step Solution

1. Step 1: Write the proportion equation
   53,200.70 : 73,417.89 = 30,542.06 : x
2. Step 2: Convert to fraction form
   53,200.70/73,417.89 = 30,542.06/x
3. Step 3: Cross multiply
   53,200.70x = 73,417.89 × 30,542.06
4. Step 4: Simplify right side
   53,200.70x = 2,242,333,899.53
5. Step 5: Solve for x
   x = 2,242,333,899.53/53,200.70
6. Step 6: Final answer
   x = 42,148.58