Finding the Fourth Proportional to 58,978.72, 88,491.57 and 21,541.33

Step by Step Solution

1. Step 1: Write the proportion equation
   58,978.72 : 88,491.57 = 21,541.33 : x
2. Step 2: Convert to fraction form
   58,978.72/88,491.57 = 21,541.33/x
3. Step 3: Cross multiply
   58,978.72x = 88,491.57 × 21,541.33
4. Step 4: Simplify right side
   58,978.72x = 1,906,226,111.59
5. Step 5: Solve for x
   x = 1,906,226,111.59/58,978.72
6. Step 6: Final answer
   x = 32,320.57