Finding the Fourth Proportional to 139,592.06, 209,389.32 and 39,752.18

Step by Step Solution

1. Step 1: Write the proportion equation
   139,592.06 : 209,389.32 = 39,752.18 : x
2. Step 2: Convert to fraction form
   139,592.06/209,389.32 = 39,752.18/x
3. Step 3: Cross multiply
   139,592.06x = 209,389.32 × 39,752.18
4. Step 4: Simplify right side
   139,592.06x = 8,323,681,938.72
5. Step 5: Solve for x
   x = 8,323,681,938.72/139,592.06
6. Step 6: Final answer
   x = 59,628.62