Finding the Fourth Proportional to 52,978.06, 73,077.33 and 31,453.21

Step by Step Solution

1. Step 1: Write the proportion equation
   52,978.06 : 73,077.33 = 31,453.21 : x
2. Step 2: Convert to fraction form
   52,978.06/73,077.33 = 31,453.21/x
3. Step 3: Cross multiply
   52,978.06x = 73,077.33 × 31,453.21
4. Step 4: Simplify right side
   52,978.06x = 2,298,516,606.73
5. Step 5: Solve for x
   x = 2,298,516,606.73/52,978.06
6. Step 6: Final answer
   x = 43,386.20