Finding the Fourth Proportional to 139,250.24, 208,841.76 and 64,298.33

Step by Step Solution

1. Step 1: Write the proportion equation
   139,250.24 : 208,841.76 = 64,298.33 : x
2. Step 2: Convert to fraction form
   139,250.24/208,841.76 = 64,298.33/x
3. Step 3: Cross multiply
   139,250.24x = 208,841.76 × 64,298.33
4. Step 4: Simplify right side
   139,250.24x = 13,428,176,457.32
5. Step 5: Solve for x
   x = 13,428,176,457.32/139,250.24
6. Step 6: Final answer
   x = 96,431.98