Finding the Fourth Proportional to 134,409.64, 185,483.83 and 73,978.98

Step by Step Solution

1. Step 1: Write the proportion equation
   134,409.64 : 185,483.83 = 73,978.98 : x
2. Step 2: Convert to fraction form
   134,409.64/185,483.83 = 73,978.98/x
3. Step 3: Cross multiply
   134,409.64x = 185,483.83 × 73,978.98
4. Step 4: Simplify right side
   134,409.64x = 13,721,904,642.37
5. Step 5: Solve for x
   x = 13,721,904,642.37/134,409.64
6. Step 6: Final answer
   x = 102,090.18