Finding the Fourth Proportional to 116,140.95, 174,093.77 and 78,704.82

Step by Step Solution

1. Step 1: Write the proportion equation
   116,140.95 : 174,093.77 = 78,704.82 : x
2. Step 2: Convert to fraction form
   116,140.95/174,093.77 = 78,704.82/x
3. Step 3: Cross multiply
   116,140.95x = 174,093.77 × 78,704.82
4. Step 4: Simplify right side
   116,140.95x = 13,702,018,437.45
5. Step 5: Solve for x
   x = 13,702,018,437.45/116,140.95
6. Step 6: Final answer
   x = 117,977.50