Finding the Fourth Proportional to 112,807.58, 155,633.27 and 67,486.86

Step by Step Solution

1. Step 1: Write the proportion equation
   112,807.58 : 155,633.27 = 67,486.86 : x
2. Step 2: Convert to fraction form
   112,807.58/155,633.27 = 67,486.86/x
3. Step 3: Cross multiply
   112,807.58x = 155,633.27 × 67,486.86
4. Step 4: Simplify right side
   112,807.58x = 10,503,200,366.40
5. Step 5: Solve for x
   x = 10,503,200,366.40/112,807.58
6. Step 6: Final answer
   x = 93,107.23