Finding the Fourth Proportional to 112,868.30, 155,774.12 and 69,861.59

Step by Step Solution

1. Step 1: Write the proportion equation
   112,868.30 : 155,774.12 = 69,861.59 : x
2. Step 2: Convert to fraction form
   112,868.30/155,774.12 = 69,861.59/x
3. Step 3: Cross multiply
   112,868.30x = 155,774.12 × 69,861.59
4. Step 4: Simplify right side
   112,868.30x = 10,882,626,575.87
5. Step 5: Solve for x
   x = 10,882,626,575.87/112,868.30
6. Step 6: Final answer
   x = 96,418.81