Finding the Fourth Proportional to 117,142.04, 161,655.76 and 63,427.12

Step by Step Solution

1. Step 1: Write the proportion equation
   117,142.04 : 161,655.76 = 63,427.12 : x
2. Step 2: Convert to fraction form
   117,142.04/161,655.76 = 63,427.12/x
3. Step 3: Cross multiply
   117,142.04x = 161,655.76 × 63,427.12
4. Step 4: Simplify right side
   117,142.04x = 10,253,359,288.21
5. Step 5: Solve for x
   x = 10,253,359,288.21/117,142.04
6. Step 6: Final answer
   x = 87,529.29