Finding the Fourth Proportional to 76,160.54, 105,098.96 and 42,170.46

Step by Step Solution

1. Step 1: Write the proportion equation
   76,160.54 : 105,098.96 = 42,170.46 : x
2. Step 2: Convert to fraction form
   76,160.54/105,098.96 = 42,170.46/x
3. Step 3: Cross multiply
   76,160.54x = 105,098.96 × 42,170.46
4. Step 4: Simplify right side
   76,160.54x = 4,432,071,488.72
5. Step 5: Solve for x
   x = 4,432,071,488.72/76,160.54
6. Step 6: Final answer
   x = 58,193.80