Finding the Fourth Proportional to 139,864.32, 209,848.32 and 65,024.64

Step by Step Solution

1. Step 1: Write the proportion equation
   139,864.32 : 209,848.32 = 65,024.64 : x
2. Step 2: Convert to fraction form
   139,864.32/209,848.32 = 65,024.64/x
3. Step 3: Cross multiply
   139,864.32x = 209,848.32 × 65,024.64
4. Step 4: Simplify right side
   139,864.32x = 13,645,311,462.60
5. Step 5: Solve for x
   x = 13,645,311,462.60/139,864.32
6. Step 6: Final answer
   x = 97,561.06