Finding the Fourth Proportional to 745,103.51, 1,116,981.32 and 271,678.16

Step by Step Solution

1. Step 1: Write the proportion equation
   745,103.51 : 1,116,981.32 = 271,678.16 : x
2. Step 2: Convert to fraction form
   745,103.51/1,116,981.32 = 271,678.16/x
3. Step 3: Cross multiply
   745,103.51x = 1,116,981.32 × 271,678.16
4. Step 4: Simplify right side
   745,103.51x = 303,459,422,828.67
5. Step 5: Solve for x
   x = 303,459,422,828.67/745,103.51
6. Step 6: Final answer
   x = 407,271.50