Finding the Fourth Proportional to 118,019.16, 177,061.55 and 51,465.11

Step by Step Solution

1. Step 1: Write the proportion equation
   118,019.16 : 177,061.55 = 51,465.11 : x
2. Step 2: Convert to fraction form
   118,019.16/177,061.55 = 51,465.11/x
3. Step 3: Cross multiply
   118,019.16x = 177,061.55 × 51,465.11
4. Step 4: Simplify right side
   118,019.16x = 9,112,491,004.89
5. Step 5: Solve for x
   x = 9,112,491,004.89/118,019.16
6. Step 6: Final answer
   x = 77,211.96