Finding the Fourth Proportional to 118,878.72, 178,344.96 and 59,742.72

Step by Step Solution

1. Step 1: Write the proportion equation
   118,878.72 : 178,344.96 = 59,742.72 : x
2. Step 2: Convert to fraction form
   118,878.72/178,344.96 = 59,742.72/x
3. Step 3: Cross multiply
   118,878.72x = 178,344.96 × 59,742.72
4. Step 4: Simplify right side
   118,878.72x = 10,654,813,008.69
5. Step 5: Solve for x
   x = 10,654,813,008.69/118,878.72
6. Step 6: Final answer
   x = 89,627.59