Finding the Fourth Proportional to 62,789.61, 94,173.94 and 20,670.15

Step by Step Solution

1. Step 1: Write the proportion equation
   62,789.61 : 94,173.94 = 20,670.15 : x
2. Step 2: Convert to fraction form
   62,789.61/94,173.94 = 20,670.15/x
3. Step 3: Cross multiply
   62,789.61x = 94,173.94 × 20,670.15
4. Step 4: Simplify right side
   62,789.61x = 1,946,589,465.89
5. Step 5: Solve for x
   x = 1,946,589,465.89/62,789.61
6. Step 6: Final answer
   x = 31,001.78