Finding the Fourth Proportional to 58,780.78, 81,123.46 and 34,591.16

Step by Step Solution

1. Step 1: Write the proportion equation
   58,780.78 : 81,123.46 = 34,591.16 : x
2. Step 2: Convert to fraction form
   58,780.78/81,123.46 = 34,591.16/x
3. Step 3: Cross multiply
   58,780.78x = 81,123.46 × 34,591.16
4. Step 4: Simplify right side
   58,780.78x = 2,806,154,584.61
5. Step 5: Solve for x
   x = 2,806,154,584.61/58,780.78
6. Step 6: Final answer
   x = 47,739.32