Finding the Fourth Proportional to 64,543.72, 89,070.96 and 37,317.76

Step by Step Solution

1. Step 1: Write the proportion equation
   64,543.72 : 89,070.96 = 37,317.76 : x
2. Step 2: Convert to fraction form
   64,543.72/89,070.96 = 37,317.76/x
3. Step 3: Cross multiply
   64,543.72x = 89,070.96 × 37,317.76
4. Step 4: Simplify right side
   64,543.72x = 3,323,928,708.25
5. Step 5: Solve for x
   x = 3,323,928,708.25/64,543.72
6. Step 6: Final answer
   x = 51,498.87