Finding the Fourth Proportional to 42,097.61, 63,146.48 and 28,085.01

Step by Step Solution

1. Step 1: Write the proportion equation
   42,097.61 : 63,146.48 = 28,085.01 : x
2. Step 2: Convert to fraction form
   42,097.61/63,146.48 = 28,085.01/x
3. Step 3: Cross multiply
   42,097.61x = 63,146.48 × 28,085.01
4. Step 4: Simplify right side
   42,097.61x = 1,773,469,381.84
5. Step 5: Solve for x
   x = 1,773,469,381.84/42,097.61
6. Step 6: Final answer
   x = 42,127.56