Finding the Fourth Proportional to 102,109.93, 140,909.25 and 55,541.61

Step by Step Solution

1. Step 1: Write the proportion equation
   102,109.93 : 140,909.25 = 55,541.61 : x
2. Step 2: Convert to fraction form
   102,109.93/140,909.25 = 55,541.61/x
3. Step 3: Cross multiply
   102,109.93x = 140,909.25 × 55,541.61
4. Step 4: Simplify right side
   102,109.93x = 7,826,326,817.17
5. Step 5: Solve for x
   x = 7,826,326,817.17/102,109.93
6. Step 6: Final answer
   x = 76,646.09