Finding the Fourth Proportional to 138,973.82, 191,849.99 and 93,112.43

Step by Step Solution

1. Step 1: Write the proportion equation
   138,973.82 : 191,849.99 = 93,112.43 : x
2. Step 2: Convert to fraction form
   138,973.82/191,849.99 = 93,112.43/x
3. Step 3: Cross multiply
   138,973.82x = 191,849.99 × 93,112.43
4. Step 4: Simplify right side
   138,973.82x = 17,863,617,339.56
5. Step 5: Solve for x
   x = 17,863,617,339.56/138,973.82
6. Step 6: Final answer
   x = 128,539.45