Finding the Fourth Proportional to 113,636, 156,653.72 and 79,538.96

Step by Step Solution

1. Step 1: Write the proportion equation
   113,636 : 156,653.72 = 79,538.96 : x
2. Step 2: Convert to fraction form
   113,636/156,653.72 = 79,538.96/x
3. Step 3: Cross multiply
   113,636x = 156,653.72 × 79,538.96
4. Step 4: Simplify right side
   113,636x = 12,460,073,968.93
5. Step 5: Solve for x
   x = 12,460,073,968.93/113,636
6. Step 6: Final answer
   x = 109,649.00