Finding the Fourth Proportional to 59,784.21, 89,691.05 and 17,664.07

Step by Step Solution

1. Step 1: Write the proportion equation
   59,784.21 : 89,691.05 = 17,664.07 : x
2. Step 2: Convert to fraction form
   59,784.21/89,691.05 = 17,664.07/x
3. Step 3: Cross multiply
   59,784.21x = 89,691.05 × 17,664.07
4. Step 4: Simplify right side
   59,784.21x = 1,584,308,985.57
5. Step 5: Solve for x
   x = 1,584,308,985.57/59,784.21
6. Step 6: Final answer
   x = 26,500.46