Finding the Fourth Proportional to 142,331.86, 213,534.84 and 42,492.10

Step by Step Solution

1. Step 1: Write the proportion equation
   142,331.86 : 213,534.84 = 42,492.10 : x
2. Step 2: Convert to fraction form
   142,331.86/213,534.84 = 42,492.10/x
3. Step 3: Cross multiply
   142,331.86x = 213,534.84 × 42,492.10
4. Step 4: Simplify right side
   142,331.86x = 9,073,543,774.76
5. Step 5: Solve for x
   x = 9,073,543,774.76/142,331.86
6. Step 6: Final answer
   x = 63,749.21