Finding the Fourth Proportional to 139,210.81, 208,547.60 and 83,095.83

Step by Step Solution

1. Step 1: Write the proportion equation
   139,210.81 : 208,547.60 = 83,095.83 : x
2. Step 2: Convert to fraction form
   139,210.81/208,547.60 = 83,095.83/x
3. Step 3: Cross multiply
   139,210.81x = 208,547.60 × 83,095.83
4. Step 4: Simplify right side
   139,210.81x = 17,329,435,501.03
5. Step 5: Solve for x
   x = 17,329,435,501.03/139,210.81
6. Step 6: Final answer
   x = 124,483.41