Finding the Fourth Proportional to 152,716.12, 229,070.76 and 52,870.28

Step by Step Solution

1. Step 1: Write the proportion equation
   152,716.12 : 229,070.76 = 52,870.28 : x
2. Step 2: Convert to fraction form
   152,716.12/229,070.76 = 52,870.28/x
3. Step 3: Cross multiply
   152,716.12x = 229,070.76 × 52,870.28
4. Step 4: Simplify right side
   152,716.12x = 12,111,035,221.01
5. Step 5: Solve for x
   x = 12,111,035,221.01/152,716.12
6. Step 6: Final answer
   x = 79,304.24