Finding the Fourth Proportional to 186,111.53, 279,054.67 and 83,510.05

Step by Step Solution

1. Step 1: Write the proportion equation
   186,111.53 : 279,054.67 = 83,510.05 : x
2. Step 2: Convert to fraction form
   186,111.53/279,054.67 = 83,510.05/x
3. Step 3: Cross multiply
   186,111.53x = 279,054.67 × 83,510.05
4. Step 4: Simplify right side
   186,111.53x = 23,303,869,444.43
5. Step 5: Solve for x
   x = 23,303,869,444.43/186,111.53
6. Step 6: Final answer
   x = 125,214.54