Finding the Fourth Proportional to 142,448.16, 213,670.56 and 59,342.16

Step by Step Solution

1. Step 1: Write the proportion equation
   142,448.16 : 213,670.56 = 59,342.16 : x
2. Step 2: Convert to fraction form
   142,448.16/213,670.56 = 59,342.16/x
3. Step 3: Cross multiply
   142,448.16x = 213,670.56 × 59,342.16
4. Step 4: Simplify right side
   142,448.16x = 12,679,672,558.81
5. Step 5: Solve for x
   x = 12,679,672,558.81/142,448.16
6. Step 6: Final answer
   x = 89,012.54