Finding the Fourth Proportional to 112,520.10, 155,345.10 and 70,136.04

Step by Step Solution

1. Step 1: Write the proportion equation
   112,520.10 : 155,345.10 = 70,136.04 : x
2. Step 2: Convert to fraction form
   112,520.10/155,345.10 = 70,136.04/x
3. Step 3: Cross multiply
   112,520.10x = 155,345.10 × 70,136.04
4. Step 4: Simplify right side
   112,520.10x = 10,895,290,147.40
5. Step 5: Solve for x
   x = 10,895,290,147.40/112,520.10
6. Step 6: Final answer
   x = 96,829.72