Finding the Fourth Proportional to 78,270.56, 108,013.59 and 42,460.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,270.56 : 108,013.59 = 42,460.58 : x
2. Step 2: Convert to fraction form
   78,270.56/108,013.59 = 42,460.58/x
3. Step 3: Cross multiply
   78,270.56x = 108,013.59 × 42,460.58
4. Step 4: Simplify right side
   78,270.56x = 4,586,319,139.21
5. Step 5: Solve for x
   x = 4,586,319,139.21/78,270.56
6. Step 6: Final answer
   x = 58,595.71