Finding the Fourth Proportional to 62,020.69, 85,596.72 and 60,331.91

Step by Step Solution

1. Step 1: Write the proportion equation
   62,020.69 : 85,596.72 = 60,331.91 : x
2. Step 2: Convert to fraction form
   62,020.69/85,596.72 = 60,331.91/x
3. Step 3: Cross multiply
   62,020.69x = 85,596.72 × 60,331.91
4. Step 4: Simplify right side
   62,020.69x = 5,164,212,953.11
5. Step 5: Solve for x
   x = 5,164,212,953.11/62,020.69
6. Step 6: Final answer
   x = 83,265.97