Finding the Fourth Proportional to 142,575.96, 213,864.06 and 42,746.64

Step by Step Solution

1. Step 1: Write the proportion equation
   142,575.96 : 213,864.06 = 42,746.64 : x
2. Step 2: Convert to fraction form
   142,575.96/213,864.06 = 42,746.64/x
3. Step 3: Cross multiply
   142,575.96x = 213,864.06 × 42,746.64
4. Step 4: Simplify right side
   142,575.96x = 9,141,969,981.76
5. Step 5: Solve for x
   x = 9,141,969,981.76/142,575.96
6. Step 6: Final answer
   x = 64,120.00