Finding the Fourth Proportional to 117,747.26, 162,492.30 and 64,032.78

Step by Step Solution

1. Step 1: Write the proportion equation
   117,747.26 : 162,492.30 = 64,032.78 : x
2. Step 2: Convert to fraction form
   117,747.26/162,492.30 = 64,032.78/x
3. Step 3: Cross multiply
   117,747.26x = 162,492.30 × 64,032.78
4. Step 4: Simplify right side
   117,747.26x = 10,404,833,697.59
5. Step 5: Solve for x
   x = 10,404,833,697.59/117,747.26
6. Step 6: Final answer
   x = 88,365.82