Finding the Fourth Proportional to 191,708.47, 264,559.55 and 105,670.83

Step by Step Solution

1. Step 1: Write the proportion equation
   191,708.47 : 264,559.55 = 105,670.83 : x
2. Step 2: Convert to fraction form
   191,708.47/264,559.55 = 105,670.83/x
3. Step 3: Cross multiply
   191,708.47x = 264,559.55 × 105,670.83
4. Step 4: Simplify right side
   191,708.47x = 27,956,227,248.72
5. Step 5: Solve for x
   x = 27,956,227,248.72/191,708.47
6. Step 6: Final answer
   x = 145,826.77