Finding the Fourth Proportional to 122,510.16, 184,867.98 and 118,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   122,510.16 : 184,867.98 = 118,116.72 : x
2. Step 2: Convert to fraction form
   122,510.16/184,867.98 = 118,116.72/x
3. Step 3: Cross multiply
   122,510.16x = 184,867.98 × 118,116.72
4. Step 4: Simplify right side
   122,510.16x = 21,835,999,430.63
5. Step 5: Solve for x
   x = 21,835,999,430.63/122,510.16
6. Step 6: Final answer
   x = 178,238.27