Finding the Fourth Proportional to 64,878.24, 89,570.88 and 58,152

Step by Step Solution

1. Step 1: Write the proportion equation
   64,878.24 : 89,570.88 = 58,152 : x
2. Step 2: Convert to fraction form
   64,878.24/89,570.88 = 58,152/x
3. Step 3: Cross multiply
   64,878.24x = 89,570.88 × 58,152
4. Step 4: Simplify right side
   64,878.24x = 5,208,725,813.76
5. Step 5: Solve for x
   x = 5,208,725,813.76/64,878.24
6. Step 6: Final answer
   x = 80,284.63