Finding the Fourth Proportional to 60,212.02, 83,066.40 and 42,318.72

Step by Step Solution

1. Step 1: Write the proportion equation
   60,212.02 : 83,066.40 = 42,318.72 : x
2. Step 2: Convert to fraction form
   60,212.02/83,066.40 = 42,318.72/x
3. Step 3: Cross multiply
   60,212.02x = 83,066.40 × 42,318.72
4. Step 4: Simplify right side
   60,212.02x = 3,515,263,723.01
5. Step 5: Solve for x
   x = 3,515,263,723.01/60,212.02
6. Step 6: Final answer
   x = 58,381.43