Finding the Fourth Proportional to 59,777.72, 89,666.56 and 19,785.96

Step by Step Solution

1. Step 1: Write the proportion equation
   59,777.72 : 89,666.56 = 19,785.96 : x
2. Step 2: Convert to fraction form
   59,777.72/89,666.56 = 19,785.96/x
3. Step 3: Cross multiply
   59,777.72x = 89,666.56 × 19,785.96
4. Step 4: Simplify right side
   59,777.72x = 1,774,138,969.50
5. Step 5: Solve for x
   x = 1,774,138,969.50/59,777.72
6. Step 6: Final answer
   x = 29,678.93