Finding the Fourth Proportional to 66,062.94, 91,128.72 and 42,162.67

Step by Step Solution

1. Step 1: Write the proportion equation
   66,062.94 : 91,128.72 = 42,162.67 : x
2. Step 2: Convert to fraction form
   66,062.94/91,128.72 = 42,162.67/x
3. Step 3: Cross multiply
   66,062.94x = 91,128.72 × 42,162.67
4. Step 4: Simplify right side
   66,062.94x = 3,842,230,254.29
5. Step 5: Solve for x
   x = 3,842,230,254.29/66,062.94
6. Step 6: Final answer
   x = 58,160.15