Finding the Fourth Proportional to 143,946, 215,826.60 and 59,764.28

Step by Step Solution

1. Step 1: Write the proportion equation
   143,946 : 215,826.60 = 59,764.28 : x
2. Step 2: Convert to fraction form
   143,946/215,826.60 = 59,764.28/x
3. Step 3: Cross multiply
   143,946x = 215,826.60 × 59,764.28
4. Step 4: Simplify right side
   143,946x = 12,898,720,274.72
5. Step 5: Solve for x
   x = 12,898,720,274.72/143,946
6. Step 6: Final answer
   x = 89,608.05