Finding the Fourth Proportional to 64,632.69, 89,156.69 and 38,784.56

Step by Step Solution

1. Step 1: Write the proportion equation
   64,632.69 : 89,156.69 = 38,784.56 : x
2. Step 2: Convert to fraction form
   64,632.69/89,156.69 = 38,784.56/x
3. Step 3: Cross multiply
   64,632.69x = 89,156.69 × 38,784.56
4. Step 4: Simplify right side
   64,632.69x = 3,457,902,992.71
5. Step 5: Solve for x
   x = 3,457,902,992.71/64,632.69
6. Step 6: Final answer
   x = 53,500.84