Finding the Fourth Proportional to 172,430.56, 237,954.12 and 96,979

Step by Step Solution

1. Step 1: Write the proportion equation
   172,430.56 : 237,954.12 = 96,979 : x
2. Step 2: Convert to fraction form
   172,430.56/237,954.12 = 96,979/x
3. Step 3: Cross multiply
   172,430.56x = 237,954.12 × 96,979
4. Step 4: Simplify right side
   172,430.56x = 23,076,552,603.48
5. Step 5: Solve for x
   x = 23,076,552,603.48/172,430.56
6. Step 6: Final answer
   x = 133,830.99