Finding the Fourth Proportional to 142,030.32, 213,047.13 and 42,188.10

Step by Step Solution

1. Step 1: Write the proportion equation
   142,030.32 : 213,047.13 = 42,188.10 : x
2. Step 2: Convert to fraction form
   142,030.32/213,047.13 = 42,188.10/x
3. Step 3: Cross multiply
   142,030.32x = 213,047.13 × 42,188.10
4. Step 4: Simplify right side
   142,030.32x = 8,988,053,625.15
5. Step 5: Solve for x
   x = 8,988,053,625.15/142,030.32
6. Step 6: Final answer
   x = 63,282.64