Finding the Fourth Proportional to 134,408.71, 185,482.59 and 73,978.06

Step by Step Solution

1. Step 1: Write the proportion equation
   134,408.71 : 185,482.59 = 73,978.06 : x
2. Step 2: Convert to fraction form
   134,408.71/185,482.59 = 73,978.06/x
3. Step 3: Cross multiply
   134,408.71x = 185,482.59 × 73,978.06
4. Step 4: Simplify right side
   134,408.71x = 13,721,642,171.98
5. Step 5: Solve for x
   x = 13,721,642,171.98/134,408.71
6. Step 6: Final answer
   x = 102,088.94