Finding the Fourth Proportional to 99,103.08, 136,762.61 and 53,781.05

Step by Step Solution

1. Step 1: Write the proportion equation
   99,103.08 : 136,762.61 = 53,781.05 : x
2. Step 2: Convert to fraction form
   99,103.08/136,762.61 = 53,781.05/x
3. Step 3: Cross multiply
   99,103.08x = 136,762.61 × 53,781.05
4. Step 4: Simplify right side
   99,103.08x = 7,355,235,813.82
5. Step 5: Solve for x
   x = 7,355,235,813.82/99,103.08
6. Step 6: Final answer
   x = 74,218.03