Finding the Fourth Proportional to 89,480.76, 134,213.46 and 42,084.71

Step by Step Solution

1. Step 1: Write the proportion equation
   89,480.76 : 134,213.46 = 42,084.71 : x
2. Step 2: Convert to fraction form
   89,480.76/134,213.46 = 42,084.71/x
3. Step 3: Cross multiply
   89,480.76x = 134,213.46 × 42,084.71
4. Step 4: Simplify right side
   89,480.76x = 5,648,334,971.56
5. Step 5: Solve for x
   x = 5,648,334,971.56/89,480.76
6. Step 6: Final answer
   x = 63,123.46