Finding the Fourth Proportional to 37,876.99, 52,267.89 and 20,880.35

Step by Step Solution

1. Step 1: Write the proportion equation
   37,876.99 : 52,267.89 = 20,880.35 : x
2. Step 2: Convert to fraction form
   37,876.99/52,267.89 = 20,880.35/x
3. Step 3: Cross multiply
   37,876.99x = 52,267.89 × 20,880.35
4. Step 4: Simplify right side
   37,876.99x = 1,091,371,967.63
5. Step 5: Solve for x
   x = 1,091,371,967.63/37,876.99
6. Step 6: Final answer
   x = 28,813.59