Finding the Fourth Proportional to 62,218.05, 85,828.17 and 42,081.70

Step by Step Solution

1. Step 1: Write the proportion equation
   62,218.05 : 85,828.17 = 42,081.70 : x
2. Step 2: Convert to fraction form
   62,218.05/85,828.17 = 42,081.70/x
3. Step 3: Cross multiply
   62,218.05x = 85,828.17 × 42,081.70
4. Step 4: Simplify right side
   62,218.05x = 3,611,795,301.49
5. Step 5: Solve for x
   x = 3,611,795,301.49/62,218.05
6. Step 6: Final answer
   x = 58,050.60