Finding the Fourth Proportional to 142,288.83, 213,460.56 and 63,402.81

Step by Step Solution

1. Step 1: Write the proportion equation
   142,288.83 : 213,460.56 = 63,402.81 : x
2. Step 2: Convert to fraction form
   142,288.83/213,460.56 = 63,402.81/x
3. Step 3: Cross multiply
   142,288.83x = 213,460.56 × 63,402.81
4. Step 4: Simplify right side
   142,288.83x = 13,533,999,328.17
5. Step 5: Solve for x
   x = 13,533,999,328.17/142,288.83
6. Step 6: Final answer
   x = 95,116.39