Finding the Fourth Proportional to 191,117.95, 263,719.86 and 105,062.74

Step by Step Solution

1. Step 1: Write the proportion equation
   191,117.95 : 263,719.86 = 105,062.74 : x
2. Step 2: Convert to fraction form
   191,117.95/263,719.86 = 105,062.74/x
3. Step 3: Cross multiply
   191,117.95x = 263,719.86 × 105,062.74
4. Step 4: Simplify right side
   191,117.95x = 27,707,131,084.02
5. Step 5: Solve for x
   x = 27,707,131,084.02/191,117.95
6. Step 6: Final answer
   x = 144,973.99