Finding the Fourth Proportional to 117,903.98, 162,706.51 and 64,188.88

Step by Step Solution

1. Step 1: Write the proportion equation
   117,903.98 : 162,706.51 = 64,188.88 : x
2. Step 2: Convert to fraction form
   117,903.98/162,706.51 = 64,188.88/x
3. Step 3: Cross multiply
   117,903.98x = 162,706.51 × 64,188.88
4. Step 4: Simplify right side
   117,903.98x = 10,443,948,485.14
5. Step 5: Solve for x
   x = 10,443,948,485.14/117,903.98
6. Step 6: Final answer
   x = 88,580.12