Finding the Fourth Proportional to 67,146.48, 92,669.40 and 42,004.08

Step by Step Solution

1. Step 1: Write the proportion equation
   67,146.48 : 92,669.40 = 42,004.08 : x
2. Step 2: Convert to fraction form
   67,146.48/92,669.40 = 42,004.08/x
3. Step 3: Cross multiply
   67,146.48x = 92,669.40 × 42,004.08
4. Step 4: Simplify right side
   67,146.48x = 3,892,492,891.15
5. Step 5: Solve for x
   x = 3,892,492,891.15/67,146.48
6. Step 6: Final answer
   x = 57,970.17