Finding the Fourth Proportional to 109,667.72, 151,342.49 and 64,346.47

Step by Step Solution

1. Step 1: Write the proportion equation
   109,667.72 : 151,342.49 = 64,346.47 : x
2. Step 2: Convert to fraction form
   109,667.72/151,342.49 = 64,346.47/x
3. Step 3: Cross multiply
   109,667.72x = 151,342.49 × 64,346.47
4. Step 4: Simplify right side
   109,667.72x = 9,738,354,992.51
5. Step 5: Solve for x
   x = 9,738,354,992.51/109,667.72
6. Step 6: Final answer
   x = 88,798.74