Finding the Fourth Proportional to 60,753.78, 90,980.01 and 42,052.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,753.78 : 90,980.01 = 42,052.50 : x
2. Step 2: Convert to fraction form
   60,753.78/90,980.01 = 42,052.50/x
3. Step 3: Cross multiply
   60,753.78x = 90,980.01 × 42,052.50
4. Step 4: Simplify right side
   60,753.78x = 3,825,936,870.53
5. Step 5: Solve for x
   x = 3,825,936,870.53/60,753.78
6. Step 6: Final answer
   x = 62,974.47