Finding the Fourth Proportional to 113,506.61, 156,625.40 and 65,106.05

Step by Step Solution

1. Step 1: Write the proportion equation
   113,506.61 : 156,625.40 = 65,106.05 : x
2. Step 2: Convert to fraction form
   113,506.61/156,625.40 = 65,106.05/x
3. Step 3: Cross multiply
   113,506.61x = 156,625.40 × 65,106.05
4. Step 4: Simplify right side
   113,506.61x = 10,197,260,503.31
5. Step 5: Solve for x
   x = 10,197,260,503.31/113,506.61
6. Step 6: Final answer
   x = 89,838.48