Finding the Fourth Proportional to 58,868.01, 88,320.24 and 20,402.79

Step by Step Solution

1. Step 1: Write the proportion equation
   58,868.01 : 88,320.24 = 20,402.79 : x
2. Step 2: Convert to fraction form
   58,868.01/88,320.24 = 20,402.79/x
3. Step 3: Cross multiply
   58,868.01x = 88,320.24 × 20,402.79
4. Step 4: Simplify right side
   58,868.01x = 1,801,978,867.87
5. Step 5: Solve for x
   x = 1,801,978,867.87/58,868.01
6. Step 6: Final answer
   x = 30,610.50