Finding the Fourth Proportional to 58,688, 88,032.72 and 21,752

Step by Step Solution

1. Step 1: Write the proportion equation
   58,688 : 88,032.72 = 21,752 : x
2. Step 2: Convert to fraction form
   58,688/88,032.72 = 21,752/x
3. Step 3: Cross multiply
   58,688x = 88,032.72 × 21,752
4. Step 4: Simplify right side
   58,688x = 1,914,887,725.44
5. Step 5: Solve for x
   x = 1,914,887,725.44/58,688
6. Step 6: Final answer
   x = 32,628.27