Finding the Fourth Proportional to 60,861.50, 91,306.83 and 19,308.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,861.50 : 91,306.83 = 19,308.50 : x
2. Step 2: Convert to fraction form
   60,861.50/91,306.83 = 19,308.50/x
3. Step 3: Cross multiply
   60,861.50x = 91,306.83 × 19,308.50
4. Step 4: Simplify right side
   60,861.50x = 1,762,997,927.06
5. Step 5: Solve for x
   x = 1,762,997,927.06/60,861.50
6. Step 6: Final answer
   x = 28,967.38