Finding the Fourth Proportional to 40,128.43, 55,386.45 and 26,700.25

Step by Step Solution

1. Step 1: Write the proportion equation
   40,128.43 : 55,386.45 = 26,700.25 : x
2. Step 2: Convert to fraction form
   40,128.43/55,386.45 = 26,700.25/x
3. Step 3: Cross multiply
   40,128.43x = 55,386.45 × 26,700.25
4. Step 4: Simplify right side
   40,128.43x = 1,478,832,061.61
5. Step 5: Solve for x
   x = 1,478,832,061.61/40,128.43
6. Step 6: Final answer
   x = 36,852.48