Finding the Fourth Proportional to 45,333.77, 67,545 and 42,787.22

Step by Step Solution

1. Step 1: Write the proportion equation
   45,333.77 : 67,545 = 42,787.22 : x
2. Step 2: Convert to fraction form
   45,333.77/67,545 = 42,787.22/x
3. Step 3: Cross multiply
   45,333.77x = 67,545 × 42,787.22
4. Step 4: Simplify right side
   45,333.77x = 2,890,062,437.18
5. Step 5: Solve for x
   x = 2,890,062,437.18/45,333.77
6. Step 6: Final answer
   x = 63,750.77