Finding the Fourth Proportional to 117,468.50, 162,045.27 and 72,156.69

Step by Step Solution

1. Step 1: Write the proportion equation
   117,468.50 : 162,045.27 = 72,156.69 : x
2. Step 2: Convert to fraction form
   117,468.50/162,045.27 = 72,156.69/x
3. Step 3: Cross multiply
   117,468.50x = 162,045.27 × 72,156.69
4. Step 4: Simplify right side
   117,468.50x = 11,692,650,313.36
5. Step 5: Solve for x
   x = 11,692,650,313.36/117,468.50
6. Step 6: Final answer
   x = 99,538.61