Finding the Fourth Proportional to 53,111.76, 79,641.72 and 18,906.14

Step by Step Solution

1. Step 1: Write the proportion equation
   53,111.76 : 79,641.72 = 18,906.14 : x
2. Step 2: Convert to fraction form
   53,111.76/79,641.72 = 18,906.14/x
3. Step 3: Cross multiply
   53,111.76x = 79,641.72 × 18,906.14
4. Step 4: Simplify right side
   53,111.76x = 1,505,717,109.95
5. Step 5: Solve for x
   x = 1,505,717,109.95/53,111.76
6. Step 6: Final answer
   x = 28,349.98