Finding the Fourth Proportional to 37,856.02, 52,240.61 and 20,861.83

Step by Step Solution

1. Step 1: Write the proportion equation
   37,856.02 : 52,240.61 = 20,861.83 : x
2. Step 2: Convert to fraction form
   37,856.02/52,240.61 = 20,861.83/x
3. Step 3: Cross multiply
   37,856.02x = 52,240.61 × 20,861.83
4. Step 4: Simplify right side
   37,856.02x = 1,089,834,463.71
5. Step 5: Solve for x
   x = 1,089,834,463.71/37,856.02
6. Step 6: Final answer
   x = 28,788.94