Finding the Fourth Proportional to 45,692.88, 68,349.72 and 42,893.52

Step by Step Solution

1. Step 1: Write the proportion equation
   45,692.88 : 68,349.72 = 42,893.52 : x
2. Step 2: Convert to fraction form
   45,692.88/68,349.72 = 42,893.52/x
3. Step 3: Cross multiply
   45,692.88x = 68,349.72 × 42,893.52
4. Step 4: Simplify right side
   45,692.88x = 2,931,760,081.81
5. Step 5: Solve for x
   x = 2,931,760,081.81/45,692.88
6. Step 6: Final answer
   x = 64,162.30