Finding the Fourth Proportional to 76,931.34, 106,160.93 and 42,942.02

Step by Step Solution

1. Step 1: Write the proportion equation
   76,931.34 : 106,160.93 = 42,942.02 : x
2. Step 2: Convert to fraction form
   76,931.34/106,160.93 = 42,942.02/x
3. Step 3: Cross multiply
   76,931.34x = 106,160.93 × 42,942.02
4. Step 4: Simplify right side
   76,931.34x = 4,558,765,152.04
5. Step 5: Solve for x
   x = 4,558,765,152.04/76,931.34
6. Step 6: Final answer
   x = 59,257.58