Finding the Fourth Proportional to 104,756.72, 157,010.06 and 72,994.72

Step by Step Solution

1. Step 1: Write the proportion equation
   104,756.72 : 157,010.06 = 72,994.72 : x
2. Step 2: Convert to fraction form
   104,756.72/157,010.06 = 72,994.72/x
3. Step 3: Cross multiply
   104,756.72x = 157,010.06 × 72,994.72
4. Step 4: Simplify right side
   104,756.72x = 11,460,905,366.88
5. Step 5: Solve for x
   x = 11,460,905,366.88/104,756.72
6. Step 6: Final answer
   x = 109,404.97