Finding the Fourth Proportional to 139,492, 209,330.16 and 65,625.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,492 : 209,330.16 = 65,625.76 : x
2. Step 2: Convert to fraction form
   139,492/209,330.16 = 65,625.76/x
3. Step 3: Cross multiply
   139,492x = 209,330.16 × 65,625.76
4. Step 4: Simplify right side
   139,492x = 13,737,450,840.92
5. Step 5: Solve for x
   x = 13,737,450,840.92/139,492
6. Step 6: Final answer
   x = 98,482.00