Finding the Fourth Proportional to 53,111.20, 73,298.20 and 30,458.16

Step by Step Solution

1. Step 1: Write the proportion equation
   53,111.20 : 73,298.20 = 30,458.16 : x
2. Step 2: Convert to fraction form
   53,111.20/73,298.20 = 30,458.16/x
3. Step 3: Cross multiply
   53,111.20x = 73,298.20 × 30,458.16
4. Step 4: Simplify right side
   53,111.20x = 2,232,528,303.31
5. Step 5: Solve for x
   x = 2,232,528,303.31/53,111.20
6. Step 6: Final answer
   x = 42,034.98