Finding the Fourth Proportional to 135,928.72, 187,587.89 and 75,499.62

Step by Step Solution

1. Step 1: Write the proportion equation
   135,928.72 : 187,587.89 = 75,499.62 : x
2. Step 2: Convert to fraction form
   135,928.72/187,587.89 = 75,499.62/x
3. Step 3: Cross multiply
   135,928.72x = 187,587.89 × 75,499.62
4. Step 4: Simplify right side
   135,928.72x = 14,162,814,411.60
5. Step 5: Solve for x
   x = 14,162,814,411.60/135,928.72
6. Step 6: Final answer
   x = 104,192.95