Finding the Fourth Proportional to 139,534.18, 209,301.31 and 41,038.18

Step by Step Solution

1. Step 1: Write the proportion equation
   139,534.18 : 209,301.31 = 41,038.18 : x
2. Step 2: Convert to fraction form
   139,534.18/209,301.31 = 41,038.18/x
3. Step 3: Cross multiply
   139,534.18x = 209,301.31 × 41,038.18
4. Step 4: Simplify right side
   139,534.18x = 8,589,344,834.02
5. Step 5: Solve for x
   x = 8,589,344,834.02/139,534.18
6. Step 6: Final answer
   x = 61,557.28