Finding the Fourth Proportional to 59,091.61, 88,618.17 and 19,638.13

Step by Step Solution

1. Step 1: Write the proportion equation
   59,091.61 : 88,618.17 = 19,638.13 : x
2. Step 2: Convert to fraction form
   59,091.61/88,618.17 = 19,638.13/x
3. Step 3: Cross multiply
   59,091.61x = 88,618.17 × 19,638.13
4. Step 4: Simplify right side
   59,091.61x = 1,740,295,142.82
5. Step 5: Solve for x
   x = 1,740,295,142.82/59,091.61
6. Step 6: Final answer
   x = 29,450.80