Finding the Fourth Proportional to 118,047.40, 162,900.69 and 64,331.29

Step by Step Solution

1. Step 1: Write the proportion equation
   118,047.40 : 162,900.69 = 64,331.29 : x
2. Step 2: Convert to fraction form
   118,047.40/162,900.69 = 64,331.29/x
3. Step 3: Cross multiply
   118,047.40x = 162,900.69 × 64,331.29
4. Step 4: Simplify right side
   118,047.40x = 10,479,611,529.59
5. Step 5: Solve for x
   x = 10,479,611,529.59/118,047.40
6. Step 6: Final answer
   x = 88,774.61