Finding the Fourth Proportional to 37,977.86, 52,410.58 and 21,210.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,977.86 : 52,410.58 = 21,210.50 : x
2. Step 2: Convert to fraction form
   37,977.86/52,410.58 = 21,210.50/x
3. Step 3: Cross multiply
   37,977.86x = 52,410.58 × 21,210.50
4. Step 4: Simplify right side
   37,977.86x = 1,111,654,607.09
5. Step 5: Solve for x
   x = 1,111,654,607.09/37,977.86
6. Step 6: Final answer
   x = 29,271.12