Finding the Fourth Proportional to 91,168.50, 136,752.03 and 27,988.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,168.50 : 136,752.03 = 27,988.50 : x
2. Step 2: Convert to fraction form
   91,168.50/136,752.03 = 27,988.50/x
3. Step 3: Cross multiply
   91,168.50x = 136,752.03 × 27,988.50
4. Step 4: Simplify right side
   91,168.50x = 3,827,484,191.66
5. Step 5: Solve for x
   x = 3,827,484,191.66/91,168.50
6. Step 6: Final answer
   x = 41,982.53