Finding the Fourth Proportional to 117,524.16, 162,071.52 and 77,272

Step by Step Solution

1. Step 1: Write the proportion equation
   117,524.16 : 162,071.52 = 77,272 : x
2. Step 2: Convert to fraction form
   117,524.16/162,071.52 = 77,272/x
3. Step 3: Cross multiply
   117,524.16x = 162,071.52 × 77,272
4. Step 4: Simplify right side
   117,524.16x = 12,523,590,493.44
5. Step 5: Solve for x
   x = 12,523,590,493.44/117,524.16
6. Step 6: Final answer
   x = 106,561.84