Finding the Fourth Proportional to 42,706.56, 58,911.36 and 29,978.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,706.56 : 58,911.36 = 29,978.76 : x
2. Step 2: Convert to fraction form
   42,706.56/58,911.36 = 29,978.76/x
3. Step 3: Cross multiply
   42,706.56x = 58,911.36 × 29,978.76
4. Step 4: Simplify right side
   42,706.56x = 1,766,089,522.71
5. Step 5: Solve for x
   x = 1,766,089,522.71/42,706.56
6. Step 6: Final answer
   x = 41,354.06