Finding the Fourth Proportional to 139,900.32, 209,902.32 and 65,060.64

Step by Step Solution

1. Step 1: Write the proportion equation
   139,900.32 : 209,902.32 = 65,060.64 : x
2. Step 2: Convert to fraction form
   139,900.32/209,902.32 = 65,060.64/x
3. Step 3: Cross multiply
   139,900.32x = 209,902.32 × 65,060.64
4. Step 4: Simplify right side
   139,900.32x = 13,656,379,276.68
5. Step 5: Solve for x
   x = 13,656,379,276.68/139,900.32
6. Step 6: Final answer
   x = 97,615.07