Finding the Fourth Proportional to 53,498.76, 79,896.84 and 42,984.76

Step by Step Solution

1. Step 1: Write the proportion equation
   53,498.76 : 79,896.84 = 42,984.76 : x
2. Step 2: Convert to fraction form
   53,498.76/79,896.84 = 42,984.76/x
3. Step 3: Cross multiply
   53,498.76x = 79,896.84 × 42,984.76
4. Step 4: Simplify right side
   53,498.76x = 3,434,346,492.16
5. Step 5: Solve for x
   x = 3,434,346,492.16/53,498.76
6. Step 6: Final answer
   x = 64,194.88