Finding the Fourth Proportional to 115,123.76, 158,875.70 and 64,136.46

Step by Step Solution

1. Step 1: Write the proportion equation
   115,123.76 : 158,875.70 = 64,136.46 : x
2. Step 2: Convert to fraction form
   115,123.76/158,875.70 = 64,136.46/x
3. Step 3: Cross multiply
   115,123.76x = 158,875.70 × 64,136.46
4. Step 4: Simplify right side
   115,123.76x = 10,189,725,253.12
5. Step 5: Solve for x
   x = 10,189,725,253.12/115,123.76
6. Step 6: Final answer
   x = 88,511.05