Finding the Fourth Proportional to 89,384.96, 134,070.46 and 42,010.40

Step by Step Solution

1. Step 1: Write the proportion equation
   89,384.96 : 134,070.46 = 42,010.40 : x
2. Step 2: Convert to fraction form
   89,384.96/134,070.46 = 42,010.40/x
3. Step 3: Cross multiply
   89,384.96x = 134,070.46 × 42,010.40
4. Step 4: Simplify right side
   89,384.96x = 5,632,353,652.78
5. Step 5: Solve for x
   x = 5,632,353,652.78/89,384.96
6. Step 6: Final answer
   x = 63,012.32