Finding the Fourth Proportional to 117,906.60, 162,710.12 and 64,191.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,906.60 : 162,710.12 = 64,191.50 : x
2. Step 2: Convert to fraction form
   117,906.60/162,710.12 = 64,191.50/x
3. Step 3: Cross multiply
   117,906.60x = 162,710.12 × 64,191.50
4. Step 4: Simplify right side
   117,906.60x = 10,444,606,667.98
5. Step 5: Solve for x
   x = 10,444,606,667.98/117,906.60
6. Step 6: Final answer
   x = 88,583.73