Finding the Fourth Proportional to 141,875.43, 212,817.61 and 53,111.99

Step by Step Solution

1. Step 1: Write the proportion equation
   141,875.43 : 212,817.61 = 53,111.99 : x
2. Step 2: Convert to fraction form
   141,875.43/212,817.61 = 53,111.99/x
3. Step 3: Cross multiply
   141,875.43x = 212,817.61 × 53,111.99
4. Step 4: Simplify right side
   141,875.43x = 11,303,165,976.54
5. Step 5: Solve for x
   x = 11,303,165,976.54/141,875.43
6. Step 6: Final answer
   x = 79,669.65