Finding the Fourth Proportional to 113,384.60, 156,477.22 and 64,994.59

Step by Step Solution

1. Step 1: Write the proportion equation
   113,384.60 : 156,477.22 = 64,994.59 : x
2. Step 2: Convert to fraction form
   113,384.60/156,477.22 = 64,994.59/x
3. Step 3: Cross multiply
   113,384.60x = 156,477.22 × 64,994.59
4. Step 4: Simplify right side
   113,384.60x = 10,170,172,758.24
5. Step 5: Solve for x
   x = 10,170,172,758.24/113,384.60
6. Step 6: Final answer
   x = 89,696.24