Finding the Fourth Proportional to 112,981.83, 169,473.71 and 28,742.07

Step by Step Solution

1. Step 1: Write the proportion equation
   112,981.83 : 169,473.71 = 28,742.07 : x
2. Step 2: Convert to fraction form
   112,981.83/169,473.71 = 28,742.07/x
3. Step 3: Cross multiply
   112,981.83x = 169,473.71 × 28,742.07
4. Step 4: Simplify right side
   112,981.83x = 4,871,025,235.98
5. Step 5: Solve for x
   x = 4,871,025,235.98/112,981.83
6. Step 6: Final answer
   x = 43,113.35