Finding the Fourth Proportional to 72,930.32, 100,668.84 and 42,725.36

Step by Step Solution

1. Step 1: Write the proportion equation
   72,930.32 : 100,668.84 = 42,725.36 : x
2. Step 2: Convert to fraction form
   72,930.32/100,668.84 = 42,725.36/x
3. Step 3: Cross multiply
   72,930.32x = 100,668.84 × 42,725.36
4. Step 4: Simplify right side
   72,930.32x = 4,301,112,429.78
5. Step 5: Solve for x
   x = 4,301,112,429.78/72,930.32
6. Step 6: Final answer
   x = 58,975.64