Finding the Fourth Proportional to 37,978.82, 56,972.78 and 15,807.18

Step by Step Solution

1. Step 1: Write the proportion equation
   37,978.82 : 56,972.78 = 15,807.18 : x
2. Step 2: Convert to fraction form
   37,978.82/56,972.78 = 15,807.18/x
3. Step 3: Cross multiply
   37,978.82x = 56,972.78 × 15,807.18
4. Step 4: Simplify right side
   37,978.82x = 900,578,988.56
5. Step 5: Solve for x
   x = 900,578,988.56/37,978.82
6. Step 6: Final answer
   x = 23,712.66