Finding the Fourth Proportional to 139,526.82, 209,173.59 and 64,700.37

Step by Step Solution

1. Step 1: Write the proportion equation
   139,526.82 : 209,173.59 = 64,700.37 : x
2. Step 2: Convert to fraction form
   139,526.82/209,173.59 = 64,700.37/x
3. Step 3: Cross multiply
   139,526.82x = 209,173.59 × 64,700.37
4. Step 4: Simplify right side
   139,526.82x = 13,533,608,667.23
5. Step 5: Solve for x
   x = 13,533,608,667.23/139,526.82
6. Step 6: Final answer
   x = 96,996.47