Finding the Fourth Proportional to 109,995.72, 164,875.50 and 72,030.48

Step by Step Solution

1. Step 1: Write the proportion equation
   109,995.72 : 164,875.50 = 72,030.48 : x
2. Step 2: Convert to fraction form
   109,995.72/164,875.50 = 72,030.48/x
3. Step 3: Cross multiply
   109,995.72x = 164,875.50 × 72,030.48
4. Step 4: Simplify right side
   109,995.72x = 11,876,061,405.24
5. Step 5: Solve for x
   x = 11,876,061,405.24/109,995.72
6. Step 6: Final answer
   x = 107,968.40