Finding the Fourth Proportional to 113,726.76, 156,971.70 and 65,974.02

Step by Step Solution

1. Step 1: Write the proportion equation
   113,726.76 : 156,971.70 = 65,974.02 : x
2. Step 2: Convert to fraction form
   113,726.76/156,971.70 = 65,974.02/x
3. Step 3: Cross multiply
   113,726.76x = 156,971.70 × 65,974.02
4. Step 4: Simplify right side
   113,726.76x = 10,356,054,075.23
5. Step 5: Solve for x
   x = 10,356,054,075.23/113,726.76
6. Step 6: Final answer
   x = 91,060.84