Finding the Fourth Proportional to 75,085.30, 103,629.35 and 42,819.98

Step by Step Solution

1. Step 1: Write the proportion equation
   75,085.30 : 103,629.35 = 42,819.98 : x
2. Step 2: Convert to fraction form
   75,085.30/103,629.35 = 42,819.98/x
3. Step 3: Cross multiply
   75,085.30x = 103,629.35 × 42,819.98
4. Step 4: Simplify right side
   75,085.30x = 4,437,406,739.39
5. Step 5: Solve for x
   x = 4,437,406,739.39/75,085.30
6. Step 6: Final answer
   x = 59,098.21