Finding the Fourth Proportional to 139,504.69, 209,191.41 and 97,432.28

Step by Step Solution

1. Step 1: Write the proportion equation
   139,504.69 : 209,191.41 = 97,432.28 : x
2. Step 2: Convert to fraction form
   139,504.69/209,191.41 = 97,432.28/x
3. Step 3: Cross multiply
   139,504.69x = 209,191.41 × 97,432.28
4. Step 4: Simplify right side
   139,504.69x = 20,381,996,032.71
5. Step 5: Solve for x
   x = 20,381,996,032.71/139,504.69
6. Step 6: Final answer
   x = 146,102.59