Finding the Fourth Proportional to 60,530.58, 83,473.61 and 40,388.31

Step by Step Solution

1. Step 1: Write the proportion equation
   60,530.58 : 83,473.61 = 40,388.31 : x
2. Step 2: Convert to fraction form
   60,530.58/83,473.61 = 40,388.31/x
3. Step 3: Cross multiply
   60,530.58x = 83,473.61 × 40,388.31
4. Step 4: Simplify right side
   60,530.58x = 3,371,357,835.56
5. Step 5: Solve for x
   x = 3,371,357,835.56/60,530.58
6. Step 6: Final answer
   x = 55,696.77