Finding the Fourth Proportional to 118,989.10, 178,437.34 and 59,783.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,989.10 : 178,437.34 = 59,783.50 : x
2. Step 2: Convert to fraction form
   118,989.10/178,437.34 = 59,783.50/x
3. Step 3: Cross multiply
   118,989.10x = 178,437.34 × 59,783.50
4. Step 4: Simplify right side
   118,989.10x = 10,667,608,715.89
5. Step 5: Solve for x
   x = 10,667,608,715.89/118,989.10
6. Step 6: Final answer
   x = 89,651.98