Finding the Fourth Proportional to 58,991.88, 88,488.72 and 21,559.56

Step by Step Solution

1. Step 1: Write the proportion equation
   58,991.88 : 88,488.72 = 21,559.56 : x
2. Step 2: Convert to fraction form
   58,991.88/88,488.72 = 21,559.56/x
3. Step 3: Cross multiply
   58,991.88x = 88,488.72 × 21,559.56
4. Step 4: Simplify right side
   58,991.88x = 1,907,777,868.16
5. Step 5: Solve for x
   x = 1,907,777,868.16/58,991.88
6. Step 6: Final answer
   x = 32,339.67