Finding the Fourth Proportional to 117,534.72, 162,157.86 and 75,117.72

Step by Step Solution

1. Step 1: Write the proportion equation
   117,534.72 : 162,157.86 = 75,117.72 : x
2. Step 2: Convert to fraction form
   117,534.72/162,157.86 = 75,117.72/x
3. Step 3: Cross multiply
   117,534.72x = 162,157.86 × 75,117.72
4. Step 4: Simplify right side
   117,534.72x = 12,180,928,723.28
5. Step 5: Solve for x
   x = 12,180,928,723.28/117,534.72
6. Step 6: Final answer
   x = 103,636.85