Finding the Fourth Proportional to 42,719.58, 58,980.72 and 38,235.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,719.58 : 58,980.72 = 38,235.54 : x
2. Step 2: Convert to fraction form
   42,719.58/58,980.72 = 38,235.54/x
3. Step 3: Cross multiply
   42,719.58x = 58,980.72 × 38,235.54
4. Step 4: Simplify right side
   42,719.58x = 2,255,159,678.79
5. Step 5: Solve for x
   x = 2,255,159,678.79/42,719.58
6. Step 6: Final answer
   x = 52,789.84