Finding the Fourth Proportional to 62,780.05, 94,049.79 and 60,669.60

Step by Step Solution

1. Step 1: Write the proportion equation
   62,780.05 : 94,049.79 = 60,669.60 : x
2. Step 2: Convert to fraction form
   62,780.05/94,049.79 = 60,669.60/x
3. Step 3: Cross multiply
   62,780.05x = 94,049.79 × 60,669.60
4. Step 4: Simplify right side
   62,780.05x = 5,705,963,139.38
5. Step 5: Solve for x
   x = 5,705,963,139.38/62,780.05
6. Step 6: Final answer
   x = 90,888.16