Finding the Fourth Proportional to 53,269.84, 79,780.28 and 42,101.60

Step by Step Solution

1. Step 1: Write the proportion equation
   53,269.84 : 79,780.28 = 42,101.60 : x
2. Step 2: Convert to fraction form
   53,269.84/79,780.28 = 42,101.60/x
3. Step 3: Cross multiply
   53,269.84x = 79,780.28 × 42,101.60
4. Step 4: Simplify right side
   53,269.84x = 3,358,877,436.45
5. Step 5: Solve for x
   x = 3,358,877,436.45/53,269.84
6. Step 6: Final answer
   x = 63,054.02