Finding the Fourth Proportional to 58,671.34, 88,012.47 and 21,240.83

Step by Step Solution

1. Step 1: Write the proportion equation
   58,671.34 : 88,012.47 = 21,240.83 : x
2. Step 2: Convert to fraction form
   58,671.34/88,012.47 = 21,240.83/x
3. Step 3: Cross multiply
   58,671.34x = 88,012.47 × 21,240.83
4. Step 4: Simplify right side
   58,671.34x = 1,869,458,212.83
5. Step 5: Solve for x
   x = 1,869,458,212.83/58,671.34
6. Step 6: Final answer
   x = 31,863.23