Finding the Fourth Proportional to 496,732.72, 745,224.84 and 141,748

Step by Step Solution

1. Step 1: Write the proportion equation
   496,732.72 : 745,224.84 = 141,748 : x
2. Step 2: Convert to fraction form
   496,732.72/745,224.84 = 141,748/x
3. Step 3: Cross multiply
   496,732.72x = 745,224.84 × 141,748
4. Step 4: Simplify right side
   496,732.72x = 105,634,130,620.32
5. Step 5: Solve for x
   x = 105,634,130,620.32/496,732.72
6. Step 6: Final answer
   x = 212,657.89