Finding the Fourth Proportional to 113,856.68, 156,774.40 and 103,176.83

Step by Step Solution

1. Step 1: Write the proportion equation
   113,856.68 : 156,774.40 = 103,176.83 : x
2. Step 2: Convert to fraction form
   113,856.68/156,774.40 = 103,176.83/x
3. Step 3: Cross multiply
   113,856.68x = 156,774.40 × 103,176.83
4. Step 4: Simplify right side
   113,856.68x = 16,175,485,617.15
5. Step 5: Solve for x
   x = 16,175,485,617.15/113,856.68
6. Step 6: Final answer
   x = 142,068.83