Finding the Fourth Proportional to 117,586.32, 162,269.42 and 63,870.90

Step by Step Solution

1. Step 1: Write the proportion equation
   117,586.32 : 162,269.42 = 63,870.90 : x
2. Step 2: Convert to fraction form
   117,586.32/162,269.42 = 63,870.90/x
3. Step 3: Cross multiply
   117,586.32x = 162,269.42 × 63,870.90
4. Step 4: Simplify right side
   117,586.32x = 10,364,293,897.88
5. Step 5: Solve for x
   x = 10,364,293,897.88/117,586.32
6. Step 6: Final answer
   x = 88,142.00