Finding the Fourth Proportional to 37,909.61, 52,317.82 and 21,994.06

Step by Step Solution

1. Step 1: Write the proportion equation
   37,909.61 : 52,317.82 = 21,994.06 : x
2. Step 2: Convert to fraction form
   37,909.61/52,317.82 = 21,994.06/x
3. Step 3: Cross multiply
   37,909.61x = 52,317.82 × 21,994.06
4. Step 4: Simplify right side
   37,909.61x = 1,150,681,272.15
5. Step 5: Solve for x
   x = 1,150,681,272.15/37,909.61
6. Step 6: Final answer
   x = 30,353.29