Finding the Fourth Proportional to 111,155.60, 153,380.44 and 63,406.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111,155.60 : 153,380.44 = 63,406.10 : x
2. Step 2: Convert to fraction form
   111,155.60/153,380.44 = 63,406.10/x
3. Step 3: Cross multiply
   111,155.60x = 153,380.44 × 63,406.10
4. Step 4: Simplify right side
   111,155.60x = 9,725,254,591.27
5. Step 5: Solve for x
   x = 9,725,254,591.27/111,155.60
6. Step 6: Final answer
   x = 87,492.26