Finding the Fourth Proportional to 37,745.51, 52,088.69 and 20,978.51

Step by Step Solution

1. Step 1: Write the proportion equation
   37,745.51 : 52,088.69 = 20,978.51 : x
2. Step 2: Convert to fraction form
   37,745.51/52,088.69 = 20,978.51/x
3. Step 3: Cross multiply
   37,745.51x = 52,088.69 × 20,978.51
4. Step 4: Simplify right side
   37,745.51x = 1,092,742,999.16
5. Step 5: Solve for x
   x = 1,092,742,999.16/37,745.51
6. Step 6: Final answer
   x = 28,950.28