Finding the Fourth Proportional to 117,171.56, 175,720.89 and 42,281.90

Step by Step Solution

1. Step 1: Write the proportion equation
   117,171.56 : 175,720.89 = 42,281.90 : x
2. Step 2: Convert to fraction form
   117,171.56/175,720.89 = 42,281.90/x
3. Step 3: Cross multiply
   117,171.56x = 175,720.89 × 42,281.90
4. Step 4: Simplify right side
   117,171.56x = 7,429,813,037.80
5. Step 5: Solve for x
   x = 7,429,813,037.80/117,171.56
6. Step 6: Final answer
   x = 63,409.69