Finding the Fourth Proportional to 139,875.32, 209,864.82 and 65,035.64

Step by Step Solution

1. Step 1: Write the proportion equation
   139,875.32 : 209,864.82 = 65,035.64 : x
2. Step 2: Convert to fraction form
   139,875.32/209,864.82 = 65,035.64/x
3. Step 3: Cross multiply
   139,875.32x = 209,864.82 × 65,035.64
4. Step 4: Simplify right side
   139,875.32x = 13,648,692,882.18
5. Step 5: Solve for x
   x = 13,648,692,882.18/139,875.32
6. Step 6: Final answer
   x = 97,577.56