Finding the Fourth Proportional to 124,780.02, 172,196.04 and 68,191.39

Step by Step Solution

1. Step 1: Write the proportion equation
   124,780.02 : 172,196.04 = 68,191.39 : x
2. Step 2: Convert to fraction form
   124,780.02/172,196.04 = 68,191.39/x
3. Step 3: Cross multiply
   124,780.02x = 172,196.04 × 68,191.39
4. Step 4: Simplify right side
   124,780.02x = 11,742,287,320.10
5. Step 5: Solve for x
   x = 11,742,287,320.10/124,780.02
6. Step 6: Final answer
   x = 94,103.91