Finding the Fourth Proportional to 117,026.47, 161,495.61 and 63,311.32

Step by Step Solution

1. Step 1: Write the proportion equation
   117,026.47 : 161,495.61 = 63,311.32 : x
2. Step 2: Convert to fraction form
   117,026.47/161,495.61 = 63,311.32/x
3. Step 3: Cross multiply
   117,026.47x = 161,495.61 × 63,311.32
4. Step 4: Simplify right side
   117,026.47x = 10,224,500,243.31
5. Step 5: Solve for x
   x = 10,224,500,243.31/117,026.47
6. Step 6: Final answer
   x = 87,369.12