Finding the Fourth Proportional to 184,863.47, 255,111.59 and 99,980.51

Step by Step Solution

1. Step 1: Write the proportion equation
   184,863.47 : 255,111.59 = 99,980.51 : x
2. Step 2: Convert to fraction form
   184,863.47/255,111.59 = 99,980.51/x
3. Step 3: Cross multiply
   184,863.47x = 255,111.59 × 99,980.51
4. Step 4: Simplify right side
   184,863.47x = 25,506,185,849.50
5. Step 5: Solve for x
   x = 25,506,185,849.50/184,863.47
6. Step 6: Final answer
   x = 137,973.10