Finding the Fourth Proportional to 157,892.76, 237,007.74 and 67,980

Step by Step Solution

1. Step 1: Write the proportion equation
   157,892.76 : 237,007.74 = 67,980 : x
2. Step 2: Convert to fraction form
   157,892.76/237,007.74 = 67,980/x
3. Step 3: Cross multiply
   157,892.76x = 237,007.74 × 67,980
4. Step 4: Simplify right side
   157,892.76x = 16,111,786,165.20
5. Step 5: Solve for x
   x = 16,111,786,165.20/157,892.76
6. Step 6: Final answer
   x = 102,042.59