Finding the Fourth Proportional to 53,274.84, 79,787.76 and 42,106.56

Step by Step Solution

1. Step 1: Write the proportion equation
   53,274.84 : 79,787.76 = 42,106.56 : x
2. Step 2: Convert to fraction form
   53,274.84/79,787.76 = 42,106.56/x
3. Step 3: Cross multiply
   53,274.84x = 79,787.76 × 42,106.56
4. Step 4: Simplify right side
   53,274.84x = 3,359,588,103.71
5. Step 5: Solve for x
   x = 3,359,588,103.71/53,274.84
6. Step 6: Final answer
   x = 63,061.44