Finding the Fourth Proportional to 37,776.52, 52,130.82 and 21,010.60

Step by Step Solution

1. Step 1: Write the proportion equation
   37,776.52 : 52,130.82 = 21,010.60 : x
2. Step 2: Convert to fraction form
   37,776.52/52,130.82 = 21,010.60/x
3. Step 3: Cross multiply
   37,776.52x = 52,130.82 × 21,010.60
4. Step 4: Simplify right side
   37,776.52x = 1,095,299,806.69
5. Step 5: Solve for x
   x = 1,095,299,806.69/37,776.52
6. Step 6: Final answer
   x = 28,994.20