Finding the Fourth Proportional to 39,992.88, 55,190.59 and 22,088.34

Step by Step Solution

1. Step 1: Write the proportion equation
   39,992.88 : 55,190.59 = 22,088.34 : x
2. Step 2: Convert to fraction form
   39,992.88/55,190.59 = 22,088.34/x
3. Step 3: Cross multiply
   39,992.88x = 55,190.59 × 22,088.34
4. Step 4: Simplify right side
   39,992.88x = 1,219,068,516.72
5. Step 5: Solve for x
   x = 1,219,068,516.72/39,992.88
6. Step 6: Final answer
   x = 30,482.14