Finding the Fourth Proportional to 49,503.13, 74,077.31 and 42,862.52

Step by Step Solution

1. Step 1: Write the proportion equation
   49,503.13 : 74,077.31 = 42,862.52 : x
2. Step 2: Convert to fraction form
   49,503.13/74,077.31 = 42,862.52/x
3. Step 3: Cross multiply
   49,503.13x = 74,077.31 × 42,862.52
4. Step 4: Simplify right side
   49,503.13x = 3,175,140,473.77
5. Step 5: Solve for x
   x = 3,175,140,473.77/49,503.13
6. Step 6: Final answer
   x = 64,140.20