Finding the Fourth Proportional to 139,613.02, 209,416.81 and 39,773.86

Step by Step Solution

1. Step 1: Write the proportion equation
   139,613.02 : 209,416.81 = 39,773.86 : x
2. Step 2: Convert to fraction form
   139,613.02/209,416.81 = 39,773.86/x
3. Step 3: Cross multiply
   139,613.02x = 209,416.81 × 39,773.86
4. Step 4: Simplify right side
   139,613.02x = 8,329,314,882.59
5. Step 5: Solve for x
   x = 8,329,314,882.59/139,613.02
6. Step 6: Final answer
   x = 59,660.02