Finding the Fourth Proportional to 37,685.35, 56,498.86 and 21,866.05

Step by Step Solution

1. Step 1: Write the proportion equation
   37,685.35 : 56,498.86 = 21,866.05 : x
2. Step 2: Convert to fraction form
   37,685.35/56,498.86 = 21,866.05/x
3. Step 3: Cross multiply
   37,685.35x = 56,498.86 × 21,866.05
4. Step 4: Simplify right side
   37,685.35x = 1,235,406,897.70
5. Step 5: Solve for x
   x = 1,235,406,897.70/37,685.35
6. Step 6: Final answer
   x = 32,782.15