Finding the Fourth Proportional to 55,693.96, 76,867.30 and 42,242.70

Step by Step Solution

1. Step 1: Write the proportion equation
   55,693.96 : 76,867.30 = 42,242.70 : x
2. Step 2: Convert to fraction form
   55,693.96/76,867.30 = 42,242.70/x
3. Step 3: Cross multiply
   55,693.96x = 76,867.30 × 42,242.70
4. Step 4: Simplify right side
   55,693.96x = 3,247,082,293.71
5. Step 5: Solve for x
   x = 3,247,082,293.71/55,693.96
6. Step 6: Final answer
   x = 58,302.23